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Chapter 3.  Early Modern England: The Tudor-Stuart Cycle (1485–1730)

 

3.1 Overview of the cycle

            As the start of the cycle we take the year when the Tudor dynasty was established, marking the end of the long period of instablity culminating in the Wars of the Roses. The year of 1485 is also a good candidate for the turning point in the population history of England, when the medieval population depression was suceeded by first signs of demographic growth. The end of the cycle is harder to pinpoint. We chose 1730 because that was the last quinquennium of negative population growth in Wrigley et al. (1997) data, but another possible endpoint is 1750, since the sustained population growth resumed only after that date. The secular cycle encompasses the Tudor, Stuart, and the beginning of the Hanoverian dynasties.

 

Trends in population and economy

            Population trajectory of early-modern England was dominated by two trends: sustained poulation growth between early sixteenth and mid-seventeenth century, followed by population stagnation until mid-eighteenth century (Figure 3.1a). One factor that we need to take into account, in order to interprete the observed pattern, is the acceleration of scientific and technical progress, which eventually (after our period) culminated in the Industrial Revolution. As was pointed out by numerous authors, the chief enabling factor of the Industrial Revolution was the great progress in agricultural productivity that began during the seventeenth century (Figure 3.1a). Increasing average yields of an acre of cropland meant that English agriculture could feed more people. In other words, the carrying capacity began increasing soon after 1600.

Figure 3.1  Detrending population trajectory for England (Turchin 2005, see also Appendix at the end of this chapter). (a) Population numbers (in million), net yields (in bushels per acre), and the estimated carrying capacity (in million of people) in England from 1450 to 1800 (all variables plotted on a log-scale). (b) Detrended population (“population pressure”) trajectory (solid curve) and inverse real wages (broken curve).

 

            The main variable in the Malthusian-Ricardian theory is not the total number of people, but the number of people in relation to resources, or population pressure on resources. Population pressure can be estimated by dividing actual population numbers by the maximum number that can be fed within a certain geographic region given current technology. The Appendix at the end of this chapter calculates the carrying capacity of England as a function of changing yields per acre of cropland, and Figure 3.1b plots the dynamics of population pressure between 1450 and 1800.       

 

            We see that at the same time that population numbers stagnated, population pressure decreased substantially—due to increasing agricultural productivity of cropland. As a result, between late fifteenth century and mid-eighteenth century population pressure, but not numbers, traced out a typical secular cycle. To check on our calculations, we also plotted the “misery index” (inverse real wage) in Figure 3.1b. The general parallelism between the two curves supports our procedure for estimating the population pressure.

 

            This period also saw a very rapid inflation—the famous price revolution of the sixteenth century (Figure 3.2). Between the 1540s and 1600 the price of wheat quadrupled, from 20 to over 80 g of silver per quintal (100 kg). At the peak of 1640s (and  again in the 1690s), the price of wheat exceeded 120 g per quintal—a six-fold increase over the century since 1540. 

Figure 3.2.  The dynamics of prices (decadal averages) in England between 1450 and 1800. Solid curve: the price of wheat in silver equivalents (Abel 1980). Broken curve: CPI of a basket of consumables (Allen 1992).

 

Social structure and elite dynamics

            The apex of the social hierarchy in early-modern England was occupied by the magnates—the lay peers (barons, viscounts, earls, and dukes), the spiritual lords (archbishops and bishops), top government administrators, and influential Court figures. The number of peers during the Tudor cycle varied between less than 60 and 170 (Table 3.1a). There were fewer than 30 bishops and no abbots after the dissolution of the monasteries in the 1530s. Not only the numbers of the higher clergy declined after the reformation, but their social status was considered as inferior to lay peers (Stone 1976:241).

 

            The bulk of the middle-rank elites consisted of the county gentry—esquires, knights, and (later) baronets, numbering between 1,300 and 4,400 (Table 3.1b). The numbers of the lesser elites, the “parish gentry”, varied between 5,000 and 15,000 (Table 3.1c). In addition to the landed gentry, the elite stratum included the lawyers above the barrister level, the urban elites (wholesalers, large-scale exporters, customs farmers, and financiers), and the parish clergy.

 

Table 3.1.  The numbers and average incomes of elites during the Tudor-Stuart cycle

(a) Magnates (Mingay 1976)

Period

Number of peers

Income, £

Income, quarters

Tons of wheat

1500

60

 

 

 

1540

60

400–1400*

1000–3500

220–760

1600

55

 

 

 

1615

81

 

 

 

1628

126

 

 

 

1640

160

6,000**

2600

567

1700

170

 

 

 

*1524 (Britnell 1997:191)

**(Stone 1965:762)

 

(b) Middle ranks (county elites)

Period

Middle ranks

Average income, £

Income,

quarters

Tons of

wheat

1500

1,300 county gentry

(500 knights + 800 esquires)

 

 

 

1524*

1,300

(500 knights + 800 esquires)

Knights: 120–200

Esquires: 50–80

320–520

130–210

70–115

28–46

1640

4,400

(1,400 baronets and knights

+ 3,000 esquires)

Knights: 500–1000

Esquires: 100–300

220–430

45–130

48–94

10–28

1700

3,000

(1,000 greater gentry

+ 2,000 lesser gentry)

 

 

 

*(Britnell 1997:191)

 

(c) Lesser elites (parish gentry)

Period

Lesser landholders

Avg income, £

Income,

quarters

Tons of

wheat

1500

5,000 gentlemen

17

64

14

1540

5,000 armigerous gentry

 

 

 

1640

15,000 armigerous gentry

<100

<43

9

1700

10,000 country gentlemen

240

100

22

 

            As to commoners, Stone (1976:240) describes a tripartite division. (1) The lesser and the more substantial yeomen, the husbandmen, the artisans, shopkeepers, and small traders. (2) The living-out laborers, both rural and urban, agricultural and industrial. (3) The apprentices and living-in servants, and the dependents on charity (widows, aged, and unemployed).

 

            Before 1540 the numbers of aristocrats of all ranks stayed flat (Table 3.1). Between 1540 and 1640, however, elite numbers roughly tripled. Because general population increased during this period only by 80% (from 2.8 to 5.1 million), the English society became significantly more top-heavy. After 1640, the numbers of middle-rank and lesser elites declined by about one-third, while the number of peers continued to grow, although at a much slower rate than before 1640 (Table 3.1).

 

            The changes affecting lesser clergy were more complex. There were 9,000–10,000 parishes in the medieval England (Moorman 1946:5). Towards the end of the Plantagenet cycle, however, a high proportion of parishes did not have a resident curate, or even a parish church. During the disturbed period of 1540–1560 there was a sharp decline in numbers entering ministry (Stone 1972:80). In the diocese of Canterbury of 274 documented livings, 107 were without an incumbent in 1560. In the archdeaconry of Oxford the number of rectors, vicars, and curates declined from 371 in 1526 to 270 in 1586 (Stone 1972:80). After 1600, as we shall discuss below, the numbers of local clergy increased very rapidly and by 1640 there was not enough livings to satisfy the demand. In 1688, Gregory King estimated that there were 10,000 clergy in England, an estimate revised to 12,000 by Lindert (1982). Thus, the numbers of lesser clergy at least doubled since 1500. But the numbers do not tell the whole story. The quality and status, although not income, of parish clergy rose during the early seventeenth century. “The late medieval parish priest was little more than a semi-literate dirt-farmer of dubious morals: the Caroline minister of a parish had a universtiy degree, strong religious convictions, a comfortable house, some books on his shelves” (Stone 1972:81). In other words, during the seventeenth century employment as a parochial clergyman became a “spillover reservoir” for surplus elites.

 

State finances

            In nominal terms the state revenues continued to increase throughout the cycle, with what appears as minor fluctations around the trend. When deflated by the price of wheat, however, the pattern of change becomes more complex (Figure 3.3). During the first phase until c. 1550, real revenues increased dmore than three-fold. During the second half of the sixteenth century, the trend inversed, and the purchasing power of the Crown revenues lost two-thirds of its value. This reversal was entirely due to the price inflation of the sixteenth century. Between 1600 and 1640 revenues fluctuated at a low level. Interestingly, because population continued to increase, on the eve of the Great Revolution per capita tax rates declined to a half of what they were in the late fifteenth century.

Figure 3.3.  Total revenues of the English state, 1485–1755 (ESFDB 1995). Dotted curve: revenues expressed in silver equivalent. Solid curve: revenues in terms of wheat. Broken curve: real per capita revenues.

 

            The Revolution saw the first spurt of increase, followed by slight decline under the Restoration. Finally, there was a great and sustained growth in real revenues in the decades around 1700, which finally took them to levels beyond the mid-sixteenth century peak (Figure 3.3).

 

Sociopolitical stability

            The period between the end of the Wars of the Roses and the onset of the Great Revolution was quite peaceful (Table 3.2). A partial exception was the two decades in the mid-sixteenth century that were characterized by dynastic instability, religious strife, and financial difficulties—the so-called Mid-Turdor Crisis (Jones 1973). This instablity, however, never escalated into a fullblown crisis (Matusiak 2005). A series of rebellions that flared up between 1536 and 1554 (the Pilgrimage of Grace, Cornwall Rising, Kett’s and Wyatt’s rebellions) were regional in character, did not seriously threaten the central authorities, and were rapidly suppressed (Loades 1999: 150-3, 173, 177-8, 193-5).

 

Table 3.2. Occurrence of rebellions, coups d’état, civil war and other instances of internal war in England (1500–1603) and England and Scotland (1603–1800). Following (Sorokin 1937, Tilly 1993), supplemented by (Stearns 2001).

Period

Description

1536–7

Pilgrimage of Grace (the Catholic rebellion in Yorkshire)

1549–50

Kett’s Rebellion, Cornwall Rising

1554

Wyatt’s Rebellion

1639–40

Scottish rebellion: the Bishops’ Wars

1642–7

Civil War

1648–51

Second Civil War

1655

Penruddock rising in Salisbury

1660

Monk’s coup; restoration of James II

1666

Revolt of Scottish Covenanters

1679

Revolt of Scottish Covenanters

1685

Monmuth and Argyll rebellions

1687–92

Glorious Revolution, with intervention by France

1715–6

Jacobite rebellion in Scotland

1745–6

Scottish rising (Jacobite pretender)

 

            The period of 1640–60, by contrast, saw a full-scale state collapse followed by a lengthy and bitter civil war. There was a relatively peaceful interlude during the Restoration, which was followed by a second period of instability, involving violent overthrow of the government, during 1685–92 (Table 3.2). The eighteenth century was very peaceful, apart from two Jacobite risings in Scotland, which were rapidly suppressed.

 

            The coin hoards trajectory during 1500–1800 is dominated by the peak associated with the Great Revolution (Figure 3.4). Two secondary peaks are also present. One of them reflects the second period of sociopolitical instability, associated with the Glorious Revolution. Another one, in the mid-sixteenth century, probably has less to do with internal instability in England (although this period includes Wyatt’s Rebellion) than with events outside it: the English-Scottish succession war and suppression of a major rebellion in Ireland.

Figure 3.4.  The number of coin hoards per decade in the British Isles, 1500–1800 (Brown 1971). Thick solid curve: England (including Wales) until 1707, after that United Kingdom (includes Scotland). Thin solid line: Scotland (until 1707). Dotted line: Ireland.

 

 

3.2 Expansion: 1485–1580

General population and economy

            After a long period of stagnation, the population of England began expanding sometime around 1500. Some scholars point to the 1480s when population started to increase, others to 1510s (Hatcher 1977); certainly by the 1520s the population was increasing briskly (Britnell 1997:246). We lack good population data for the period before 1540, but one indirect sign of expansion is the jump in the replacement rates detected in the Inqusitions Post Mortem around 1500 (but these data primarily tell us what was happenning with the landed elites). Another sign is the intense rebuilding activity by peasants of their houses, with a concentration of new construction in the period 1440–1520 (Dyer 2002:356). This was followed by a rebuilding of thousands of parish churches between 1480 and 1540 (Hoskins 1976:12). The final indication is the price inflation of 1500–30 accompanied by a sluggish response of the wages (Britnell 1997:244). In fact, 1500 appears to be the turnaround point when the misery index (inverse real wage) began sustained ascent (Figure 3.1).

 

            Analysis of Lay Subsidies of 1524 and 1525 suggests a population of 2.3 mln people (Cornwall 1970), which is the same as the estimated minimum during the fifteenth century. A later re-evaluation suggests an even lower number (Campbell 1981), which is, however, difficult to reconcile with the firmer estimate of 2.8 mln people in 1541 (see below). Population increase from 2.3 to 2.8 million between 1520s and 1540s implies a relative growth rate of 1 percent per year, which is somewhat above the growth rate after 1540 for which we have solid data: the back projection suggests that the annual rate of population growth between 1541 and 1556 was 0.87 percent (Wrigley and Schofield 1981:566).

 

            One important aspect of the early stages of population expansion was that it was accompanied by a significant shift in the urban/rural population balance. With the exception of London, it appears that all English towns lost population between 1400 and the middle of the sixteenth century. For example, Coventry, the dominant town of the Midlands, managed to expand its population between 1348 and 1450 despite the ravages of the Black Death. In 1440 its population was over 10,000, and in 1500 only slightly less (8,500–9,000). However, in 1520 the population was only 7,500 and by the mid-sixteenth century it collapsed to 4,000–5,000 (Phythian-Adams 1979:281). Coventry was not an unusual example. Other cities that lost about half of its population between 1377 and 1525 were Winchester, York, Boston, Lincoln, and Lynn (Dyer 2002:300). Leicester, Norwich, Bristol, Southampton, Salisbury, and Hereford all shrank severely or experienced serious economic difficulties (Phythian-Adams 1979:283-4, Dyer 2002:300). Population of London, the only exception to this pattern, grew during this period, but slower than the overall population. A number of towns simply stopped being towns, either because their inhabitants deserted them, or because they ceased to have an urban economy (Dyer 1980:301). This trend was particularly severe in the west and north of Britain.

 

            The general dynamic underlying deurbanization was the reverse of the trend observed during the stagflation phase of the previous cycle. A shrunken elite stratum coupled with reduced consumption levels by an average elite household translated into a depressed demand for luxuries and manufactures. As a result, towns offered reduced employment opportunites to potential  immigrants from rural areas. Meanwhile rural areas became more attractive places to live as political stability returned under the Tudor regime. There arose new possibilities of expanding the carrying capacity by internal colonization of previously abandoned lands. Thus, both “pull” and “push” factors aligned to reduce the inflow of rural migrants to towns. As a result, urban populations shrank because of high mortality and low birth rates prevailing in premodern towns. Incidentally, this redistribution of population between the urban and rural locations may help explain why it is so difficult to directly document the early phase of population increase (1480–1540). Unlike urban shrinking, rural recolonization is not easily detectable (except by using indirect measures, such as peasant house construction and parish church rebuilding).

 

            Whatever the timing and tempo of the early population expansion, by 1541 the total was 2.8 mln (Wrigley et al. 1997), a substantial increase over the fifteenth century level. Due to the excellent research by the Cambridge Group for the History of Population and Social Structure, the population trajectory of post-1540 England has become well known. After 1540 population grew at an accelerating  rate, which exceeded 1 percent per year in 1580. After 1580 population continued to grow, crossing the 4 mln threshold in the early 1590s, but at a declining rate.

 

            Rapid population growth during the second half of the sixteenth century, combined with torrents of precious metals from the New World, drove the prices to unprecedented levels. At the same time, nominal wages increased at a much slower rate, with dire consequences for commoner standards of life.

 

            In the early sixteenth century, before the price revolution, laborer’s wages provided for a standard of life that was modest, but well above the starvation level. Assuming that a worker could find employment for 150 days a year, and that the daily wage rate was 4 d., Hoskins (1976:113) estimated the annual income of 50 s. (master cradtsmen would be paid 50% more, since their daily wage was 6 d.). Five quarters of wheat (14.5 hl, a resonable index of food consumption for a family of five) would cost 30 s., and consume 60% of the annual income. Other expenses were much smaller. The typical rent was 5 s. per year. Working-class clothing cost 4 s. per person per year, but it is unlikely that laborers spent that much. Most clothing was probably made at home and poor people wore others’ cast-offs. A pair of shoes for “poor people” cost a shilling. Where woodland was within easy access, the poor collected wood for fuel. Where woodland was scarce, they burned the dried haulms of peas and beans and even dried cow-dung (Hoskins 1976:116), or did not heat their dwellings at all. Life was not easy, but the laborer’s wages were sufficient for food and basic shelter. Additionally, the wife and children could supplement the family income, either by working in the textile industry, or by seasonal employment in agriculture.

 

            During the sixteenth century wages grew slower than prices, collapsing in real terms. For example, agricultural wage in southern England stayed constant at 4 d./day until 1550, and then grew to 8 d./day by the 1580s and 1590s (Thirsk 1967:864). The purchasing power of the wage rate, however, declined by 50% by the 1590s (Thirsk 1967:865).

 

            Land rents rose, but initially slower than prices, shifting the distribution of agricultural profits from the landlord to the tenant (Stone 1972:68). As we shall discuss below, during the stagflation phase rents increased faster than prices, and the direction of the flow of profits was reversed.

 

Elites

            Until the middle of the sixteenth century the expansion of elite numbers lagged behind general population growth. Throughout most of the century, the numbers of peers fluctuated near 60 (Mingay 1976). The numbers of knights increased from 375 in 1490 to 600 in 1560 (Stone 1965:71), an increase of only 60% while population more than doubled.

 

            In the mid-sixteenth century the elite fortunes were dramatically changed by the greatest land transfer in the English history after the Norman conquest—the dissolution of monasteries. The net yearly income of the Church was estimated by Hoskins (1976:121) as £400,000, at least 60% of which passed to the Crown. During 1536–54 a large part of this land (valued at £1.1 million) was sold to the gentry (Stone 1972:154), creating the economic basis for the subsequent expansion of the elite class.

 

3.3  Stagflation: 1580–1640

Population and economy

            Population continued to grow, but at a decelerating rate, and reached 5.3 million during the 1640s (Wrigley et al. 1997). Thus, between 1480 and 1640 English population more than doubled. “The doubling of the population in the 120 years before the civil war is the critical variable of the period, an event the ramifications of which spread out into every aspect of the society” (Stone 1972:67, see also Russell 1990:1, Kishlansky 1997). One consequence of population growth was a drastic decline in the land/peasant ratio. For example, whereas prior to 1560, 57% of landholdings were 1 acre or greater in size, after 1620 only 36% were in that category. What was worse, the numbers of landless peasants drastically increased: the proportion of laborers owning only a cottage with garden or croft increased from 11% before 1560 to 40% after 1620 (Everitt 1967:402).

 

            Overall the price of grain rose almost eight-fold from 1500 to 1640 (in nominal terms; when expressed in g silver, the increase was six-fold). To investigate factors that were responsible for this inflation, Jack Goldstone (1991: Table 3) fitted a simple regression model with log-transformed population, an index of harvest quality, and time (the dummy variable for technical change) as independent variables to the data. The model explained 99% variance in the log-transformed prices, and indicated that the most important factor driving inflation was population growth.

 

            Expansion of money supply, resulting from large-scale importation of bullion from the Americas, also contributed to the price revolution of the sixteenth century. However, even in Spain, where the effect should be the greatest, sustained inflation started in 1540—before any substantial amounts of precious metals started arriving from the New World—and continued after 1620, despite declining bullion imports (Fischer 1996:Fig.2.09). Another clue suggesting that the primary mover behind inflation was population growth is the disparity between price increases of food and fuel versus manufactures (Table 3.2). Whereas the price of grain increased almost eight-fold, the price of manufactures increased only by a factor of three.

 

Table 3.2.   Relative increases in prices of food and fuel (grain, livestock, and wood) versus manufactures (Fischer 1996:74).

years

grain

livestock

wood

manufactures

1450-1469

99

100

102

101

1470-1489

104

101

102

101

1490-1509

105

105

88

98

1510-1529

135

128

98

106

1530-1549

174

164

108

119

1550-1569

332

270

176

202

1570-1589

412

344

227

227

1590-1609

575

433

312

247

1610-1629

788

649

500

294

 

            Another indicator suggesting that price inflation was driven primarily by population growth is real wages, which declined by more than 40% between 1500 and 1640 (Allen 2001). Land rents also increased at an accelerating rate (Table 3.3). During the sixteenth century rents increased in line with prices, but after 1580 rents rapidly outpaced inflation. As a result, real rents stagnated during the expansion phase so that the only way for landlords to increase their revenues was to get more land. During the stagflation phase, by contrast, real rents grew rapidly, and the landlords enjoyed a substantial increase in their incomes. For example, the standard of living of the average gentry in Warwickshire increased by nearly 400% between the 1530s and 1630s (Stone 1972:74).

 

Table 3.3.  Rents. Data from (Kerridge 1953) and (Allen 1992). Peaks in real rents are emphaszied in boldface.

 

 

 

Kerridge

 

Allen

year

d./acre

real rent

year

real rent

1515

6.562

1.00

1462.5

1.1752

1525

6.235

0.75

1487.5

1.2217

1535

13.283

1.65

1512.5

1.0736

1545

13.796

1.37

1537.5

1.3542

1555

20.192

1.22

1562.5

0.7887

1565

22.902

1.33

1587.5

4.1571

1575

28.551

1.51

1612.5

5.3031

1585

21.577

1.00

1637.5

4.3822

1595

35.927

1.20

1662.5

4.2364

1605

44.070

1.54

1687.5

4.2230

1615

54.405

1.67

1712.5

7.1223

1625

45.867

1.36

1737.5

6.6528

1635

57.838

1.44

1762.5

6.1794

1645

42.572

0.99

1787.5

5.3608

1655

55.447

1.47

1812.5

5.3611

 

Urbanization and trade

            During the sixteenth century the growth of London population largely kept pace with the total population of England. As a result, London contained between 2 and 3% of the total population. After 1600, however, the size of London mushroomed to the point where over 10% of the total population resided in it. During the second half of the eighteenth and early nineteenth centuries the growth of London population again lagged behind that of the country (in 1830 London contained 9% of the total population). In other words, urbanization has exhibited the typical secular dynamics, with the peak of urbanization lagging substantially behind the population peak. Urbanization was dominated by, but not limited to London. For example, between 1603 and 1670 the urban population of East Anglia grew by 50%, while the total population of the area rose only by 11%. The largest towns grew fastest: Norwhich increased from 12,000 to 30,000 during the seventeenth century (Clay 1984a:20).

 

            The dynamics of trade and industry parallelled those of urbanization. Shipping owned in London rose from 12,300 tons in 1582 to 35,300 tons in 1629, and to about 150,000 tons by 1686 (Clay 1984a:202). Between 1622 and 1700 the value of imports of food and raw materials to London increased from £1 million to £3 million (Clay 1984b). The growth of industry can be illustrated with some numbers on iron production. In 1500 this was a mere 140 tons p.a., while by 1600 it grew to 10,000. In 1660 total home iron production rose to 20,000 tons.

 

Elites

            Between 1540 and 1640 the numbers of various elite strata expanded much faster than the general population (Table 3.1). While population grew by 80% (from 2.8 to 5.1 mln), the elite numbers tripled (from 6,300 to 18,500 aristocratic families). The radical increase of aristocratic numbers affected all elite strata: the number of peers increased from 60 to 160, baronets and knights from 500 to 1400, esquires from 800 to 3,000, and armigerous gentry from 5,000 to 15,000  (Stone 1972:72).

 

            As the numbers of the gentry grew, so did their involvement in the local and central government. For example, the number of men appointed as Justices of the Peace in four sample counties (Kent, Norfolk, Warwickshire, and the North Riding of Yorkshire) increased from 60 in the late fifteenth century to 96 in 1562, 166 in 1636, and 396 in 1702 (Heal and Holmes 1994:167)—a 6.6-fold increase! The membership of the House of Commons grew from 300 to 500, while the gentry component in it rose from 50% to 75% (Stone 1972:92), implying a 2.5 increase in the number of gentry MPs.

 

            The expansion of landed elites was accompanied by the rise of professions. The numbers of lawyers, doctors and other practicioners of medicine, and secretarial/administrative assistants showed sustained and striking increase, generally peaking in 1640 (Stone 1976:34). For example, the number of attorneys enrolled in the court of Common Pleas rose between 1578 and 1633 from 342 to 1,383. The numbers of the clergy also increased, starting in 1560 and reaching a peak in 1640 (Stone 1976:34).

 

            The causal factors underlying the “rise of the gentry” are well understood. In the first phase, roughly 1540–60, the gentry profited from the massive land transfer of the church property. In the second phase, after 1580, the gentry benefited from rising real rents. Additionally, as the Crown finances worsened, it was forced to sell more land. The value of the Crown lands sold between 1589 and 1635 was £2.1 million (Stone 1972:154), and most of it ended up in the hands of the gentry. 

 

            The rise of the gentry was accompanied by ever increasing levels of conspicuous consumption, as well as increasing degree of inequality. “In 1485 most English people, even well to do, wore similar dress. Women wore plain, loose-fitting garments and men did likewise. Fine but simple linen was as acceptable in formal costume as ornate silk. … The third and fourth decades of the sixteenth century, however, saw an explosive growth in the consumption of expensive and ornate costume. Demand rose enormously, especially among the wealthy, who purchased expensive brocades, velvets, and silks for new and splendid costumes. … During the reign of Elizabeth, men changed their fashions entirely; their clothes became more elaborate and distinctive. … Women matched male attire with exquisitely decorated farthingales and fine damask gowns. …the sixteenth century closed with a ‘wild orgy of extravagance,’ as the provincial gentry attempted to elmulate the London haute monde by wearing extravagant costumes and hats with twelve-inch crowns” (Berger 1993:20-21).

 

            At a certain point, however, the elite numbers icreased beyond the “sustainable level.” As a result, competition for jobs and patronage gradually intensified, with all the dire consequences for political stability of the English society. Goldstone (1991) proposed two ways in which we can quantify intraelite competition. First, we can examine the data on university enrollments. University enrollments increased drastically during the second half of the sixteenth century, and reached the peak in 1640. We know that this secular trend was not simply a part of the much longer (“millenial”) increase in the general level of European literacy and education, because by the 1750s, when intraelite competition greatly subsided, the enrollments declined to pre-1600 levels (Figure 3.5). “The universities were turning out an educated clergy and laity in excess of suitable job opportunities, and were thus creating a large and influential group of discontented ‘Outs’ ” (Stone 1972:96).

Figure 3.5. Enrollments at Oxford University, 1500–1850.

 

            The second indicator of intraelite competition was the amount of litigation among gentry. “In 1640, there was probably more litigation per head of population going through the central courts at Westminster than at any time before or since. But one hundred years later in 1750, the common law hit what appears to have been a spectacular all-time low” (Brooks 1989:360). For example, from 1640 to 1750, the number of gentry who appeared in the Courts of Common Pleas as plaintiffs or defendants dropped by over 65% (Brooks 1989). Thus, the increase in litigation was not simply a result of the rise of the modern society in England.

 

            A third indicator of intraelite competition, in addition to the two proposed by Goldstone, was the veritable epidemic of dueling that afflicted the English aristocracy in the late sixteenth century. The number of duels and challenges mentioned in newsletters and correspondence jumped from 5 in the 1580s to nearly 20 in the 1590s and then to a peak of 39 in the 1610s (Stone 1965).

 

            The rise of dueling coincided with (and perhaps was a part of) the crime wave that inundated the English society in the late sixteenth century and peaked in the early seventeenth. Data on homicides assembled by Eisner (2003) suggests that the general incidence of crime increased and declined in step with population pressure and inverse real wages (Figure 3.6).

Figure 3.6. Homicides

 

The state

            The final major consequence of population growth was the increasing fiscal strain on the English state. The state revenues were strong under Henry VII and continued to increase until the mid-sixteenth century. After that point, revenues declined in real terms (Figure 3.3), while expenses continued to rise. The state’s fiscal difficulties mounted during the sixteenth century and reached a peak on the eve of the Great Revolution (Figure 3.7a). The basic problem was that the Crown’s real expenses increased proportionately to population numbers, while real income declined. Additionally, the expanded elite numbers imposed greater patronage costs on the state. Increasingly, from mid-sixteenth century on, the Crown was forced to sell assets, levy forced loans, and seek parliamentary grants even in peacetime (Goldstone 1991: 93). By the 1630s, the Crown lands were largely gone, and the unpaid Crown debt reached the point where the interest on it was greater than the ordinary revenues. Furthermore, prior efforts to secure extraordinary revenues have alienated the elites to the point where they were unlikely to aquiesce to further fiscal demands or entreaties by the Crown.

Figure 3.7. (a) An index of the state’s fiscal distress (Goldstone 1991:Figure 4). Goldstone’s index of fiscal distress varies from 0 = adequate income and credit to 4 = total bankruptcy (Goldstone 1991:105).

 

            Here are some numbers. The state debt grew from £400,000 in 1603 to £900,000 in 1618 (Hughes 1991:27). Under Elizabeth “perks” of £8,000 per annum were distributed to the peers; under James I this increased to £105,000 (Hughes 1991:151). By 1626 pensions rose to £140,000 per year, or about a quarter of the total cash revenues of the Crown (Stone 1965:419). Some of these pensions were due to legitimate demands of the government service, but an increasing part went to fuel “the growth of a parasitic court aristocracy preying upon the revenues of the Crown” (Stone 1965:419). In the 1630s more than half of government revenue was absorbed by official salaries (Clay 1984b:261).

 

3.4  Crisis: 1640–60

The Onset of the Civil War

            By 1640 the social pressure resulting from population expansion, elite overproduction, and growing state insolvency reached the breaking point. In his seminal work, Revolution and Rebellion in the Early Modern World, Jack Goldstone (1991) used several social and political indicators to quanitfy the growing pressure.

 

            The first index is the mass mobilization potential (MMP) of the general populace. One population group is of particular importance—the urbanized workers and artisans, especially in the capital, because they are located near the centers of power. Goldstone proposed three measurable components in the MMP: (1) the degree of misery affecting the urban masses by the dynamics of real wages; (2) youthful age structure, which increases mobilization potential of the crowd; and (3) urban growth, which concentrates the poor young sons and other discontented commoners, and thus should play an important multiplier role in ampliying the popular discontent brought about by increasing poverty. Goldstone proposed a formula combining the effects of these three mechanisms in one measure of mass mobilization potential. The estimated MMP for England during 1530–1750 is plotted in Figure 3.7b.

 

            Increased mass mobilization potential by itself was not enough to cause the state collapse when the elites were unified and determined to prevent it. Thus, the second trend contributing to state breakdown was the loss of elite unity. Favorable economic conjuncture for landowners during the stagflation phase resulted in massive expansion of elite numbers. However, the amount of surplus that could be wrung from the peasants stagnated and even declined after 1620. For example, real rents peaked during the first quarter of the seventeenth century and declined thereafter (Table 3.3). The direct consequence of these two opposing trends was that the average income per elite capita declined on the eve of the Great Revolution. As usually happens, the pain was not spread evenly, and while many elite families were greatly impoverished, others continued to do well. Thus, not only was there a growing segment of elites who faced the prospect of downward mobility, there was also a visible rise in inequality. One avenue for preserving the elite status was to seek employment with the state, church, or the magnates. But employment opportunites could not keep pace with the growing numbers of elite aspirants (most of whom had university degrees). “Limits on available land, civil and ecclesiastical offices, and royal patronage led to increasingly polarized factional battles between patron-client groups for available spoils” (Goldstone 1991:119). When one elite faction won, it attempted to completely exclude its rivals. This is what happened when the faction led by George Villiers, the Duke of Buckingham, managed to monopolize the Court’s patronage from about 1617 to his death in 1628. In the words of David Loades (1999:308), “the ascendancy of Buckingham … transformed abuse into a scandal of systematic exploitation.”

 

            The rising clamoring of the elites for positions aggravated the third trend, the fiscal difficulties of the state. The state finances were also under pressure from rising miltiary costs due to the military revolution of the sixteenth century. The revenues, however, ultimately failed to match the pace of increase in the outlays. In fact, real revenues declined during the second half of the sixteenth century, and stagnated from 1600 to 1640 (Figure 3.3). Thus, the ability of the state to raise revenue could not keep up with the increasing fiscal demands on it. The Crown used a variety of expedients to provide short-term relief—the sale of Crown lands, offices, and titles, debasement of coinage, and borrowing from the city of London and the international money market. By the 1630s, however, Crown lands were gone and the state debt reached over £1 million. The state was on the brink of bancruptcy, and it took a very slight shock (the Bishops War) to tip it over the precipice.

 

Economic consequences of the Civil War

            The civil wars started in 1642 and lasted with intervals until 1651, followed by a period of continuing political instability until the restoration of the monarchy in 1660. During this period of civil war and governmental confusion some 10% of the male population was killed. Towns such as Birmingham (1643), Bolton (1644), and Leicester (1645) were sacked. The castles and houses of the nobility and gentry were sacked or destroyed to prevent their use in future campaigns (King 1971:355). Local studies document the extent of property damage. For example, even though Gloucester remained under one side’s control throughout the conflict, and its siege was not reckoned to be particulalry destructive, a 1646 investigation found 241 houses destroyed leaving 1,250 people homeless, and the suburbs were not rebuilt until the eighteenth century (Warmington 1997:78). The countryside suffered much more. Almost every village in Inshire (the area around Gloucester) was plundered at least once, and many repeatedly. The Tewkesbury region (also in Gloucestershire) was plundered in 1643, 1644, and 1645. As a result of pillage and heavy taxation imposed by both sides land values declined so far that tenants refused to pay rents and abandoned their leases. Some villages were reportedly depopulated as a result of the war (Warmington 1997:77).

 

            Enormous amount of land changed hands (although much of it was later reversed), including £3.5 million of Crown lands, £2.5 million of ecclesiastical lands, and over £1 million of Royalist lands (King 1971:355). This transfer of land caused significant dislocation in the countryside. Purchasers of confiscated lands were anxious to secure quick returns and tenants who could not produce written evidence of their titles were liable to eviction (Hill 1982:125).

 

            The rural poor in England were almost entirely neutral during the 1640s and 1650s. The only serious intervention by the rural poor were the assemblies of the “clubmen” who gathered in several counties during the latter stages of the war. These were no more than desperate attempts by the rural poor to protect their fields, crops, cattle, and women from the depredations of both armies (Stone 1972:55)

 

            To sum up, the civil war did enormous damage to the economic infrastructure of England. It appears that the only reason for the very slight population decline that the country experienced during the seventeenth century was rapidly increasing agricultural productivity. Thus, wheat yields increased by more than 50% during the seventeenth century, apparently compensating for the loss of cultivated land resulting from internal warfare.

 

Population

            Thanks to the work by Wrigley, Schofield and co-workers on the population reconstruction of the early modern England we have a firm grasp of the demographic machinery underlying population changes from the mid-sixteenth to the nineteenth century. The temporal variation in the population growth rate was due to changes in both birth and death rates, but crude birth and death rates responded with different lags to changes in population numbers. 

 

            Wrigley, Schofield, and coworkers showed that a large proportion of variance in the crude birth rate was explained by nuptiality. The proportion of population never marrying increased from 5% in the mid-sixteenth century to over 25% by 1650, before declining back to 5% during the next hundred years (Wrigley and Schofield 1981:262). Average age of first marriage also increased between 1550 and 1650, reducing the average number of children per married woman by at least one (Wrigley et al. 1997:136).

 

            The seventeenth century was an era of steadily worsening mortality, which reached the maximum around 1680. There was an improvement around 1700, and then another mortality peak during the 1720s, particularly affecting infants and children (Wrigley et al. 1997:283). The eighteenth century saw a gradual (and not always monotonic) improvement in the expectation of life. Migration began growing in 1550, peaked in 1650, and then entered a secular decline until the 1780s (Wrigley and Schofield 1981:220).

 

            The explanations of the worsening demographic regime are provided by the “usual suspects” of famine, disease, and war. The worst famine of the period occurred during the years 1594–7, which saw the longest run of bad harvests of the sixteenth century (Clay 1984a:19). A generation later, in 1622–3, a rise in the price of grain coincided with a severe depression in the cloth industry, leaving many people without money to buy food. There is clear evidence from both periods of deaths from starvation, especially of vagrants, elderly widows, and pauper children. Other subsistence crises followed, but by the middle of the seventeenth century widespread famine seems to have become a thing of the past (Clay 1984a:19).

 

            The plague, which relaxed its grip on the English population by the end of the fifteenth century gradually increased during the sixteenth (Biraben 1975). The century between 1570 and 1670 was a period of recurrent plague epidemics, culminating in the great plague of London (1665).  During the late seventeenth century the plague suddenly went extinct in England. However, the plague was not the only scourge during the seventeenth century. Typhus epidemics often flared up when internecine fighting intensified (for example, in 1648). The annual death toll of smallpox epidemics in London often exceeded 2,000 during the 1670s (Scott and Duncan 2001:40).

 

3.5  Depression: 1660–1730

Population stagnation

            The population of England declined from the peak of 5.4 mln, achieved during the 1650s, to a trough of 5 mln in the 1680s. The period after that was characterized by very slow and uneven growth. The population was still 5.4 mln in 1730, and the next period of vigorous growth began only after 1750. The main factor explaining this prolonged period of stagnation appears to be the mortality, because fecundity exhibited an increasing trend from 1650 on. However, detailed demographic investigation by Wrigley et al. (1997:298) indicates that adult mortality improved during the eighteenth century, but this improvement was offset until the 1750s by high infant and child mortality rates. Infanticide indictment rates in England  peaked in the very late seventeenth century and slowly declined during the eighteenth (Figure 3.8), suggesting that high infant mortality during this period may have been a result of conscious (or unconscious) attempt at birth control. Thus, the demographic picture is murky, and does not tell us much about the possible causes of population stagnation prior to 1750.

Figure 3.8. Infanticide indictment rates per 100,000 (Roth 2001).

 

            We believe that three factors, two endogenous and one exogenous, can help us understand this puzzling phenomenon (but not a unique one, recollect that a similar period of population stagnation occurred during the depression phase of the Plantagenet cycle). First, there was a strong negative effect of urbanization on population growth. As we discussed above, the peak of urbanization was considerably lagged with respect to the population peak. Between 1700 and 1750 London contained 10% of the country’s population, a four-fold increase from 1580, and slightly greater than the urbanization index of 1830 (9%). High degree of urbanization during the depression phase of the Tudor cycle without doubt was an important contributing factor to the unfavorable demographic regime. E. A. Wrigley (cited from Clay 1984a:191) calculated that during 1690–1710 immigration to London (estimated at 30,000 per year, on average) absorbed half of the natural increase of the entire population of the country. The enormous losses that London suffered in the seventeenth century plagues were made good by the second year after an outbreak. The dampening demographic effect of London was amplified by the fact that it disproporationately attracted female immigrants who came in response to the great demand for domestic servants. As a result, there were fewer than 90 men for every one hundred of women (Clay 1984a:209). The sex imbalance served to further depress the ability of population to increase.

 

            Second, the data on rents collected by Robert Allen suggests that real rents jumped by 70% from the last quarter of the seventeenth to the first quarter of the eighteenth century (Allen 1992:172). It is likely that, once the period of intraelite disunity was over, the elites were in a much better position to “turn the screws on” the peasants. Although the increased rent was partly compensated by the increase in productivity achieved by the English agriculture during the seventeenth century, it still must have substantially decreased personal consumption of peasants. This is a very tentative interpretation, and not free of problems. For example, real wages during this period generally kept increasing (although they never reached their fifteenth century maximum). But if peasants were over-exploited, then this should have spilled off into real wages, which we do not see. Perhaps increased rents simply retarded the growth of the rural population, thus contributing indirectly to slow population growth. This issue requires further investigation.

 

            The third factor was the general worsening of the climate in the early eighteenth century (associated with the Maunder Minimum of solar activity). The climate cooling affected Europe from London to Moscow, causing a sequence of crop failures and famines. We know that populations of both France and Russia experienced declines during the first decade of the century, which usually is attributed to the exactions imposed by wars pursued by Louis XIV and Peter I, respectively. However, it is equally possible that the explanation of this pan-European population decline may lie in the exogenous factor—climate.

 

The elites

            The Civil War resulted in serious deterioration of the economic position of the landed elites. Particularly affected were the Royalists whose lands were confiscated and sold. The combined value of these properties was over £1.25 million. This land transfer was partially reversed because many Royalists bought their estates back before 1660 (Hill 1982:126). However, most of them had to incur heavy debt to do so. Nearly £1.5 million was raised from some 3,000 Royalists by the Committee of Compounding. On top of these and other exactions came heavy taxation. In order to pay composition fines after a long period of receiving no rents, Royalists had to sell part of their lands, and these lands were not restored after 1660. Thus, although the bulk of Royalist landlords retained their position, many were greatly impoverished in the process, and some lesser elite families had a stiff fight to keep their heads above water (Hill 1982:126).

 

            During the last quarter of the seventeenth century almost all landlords experienced a further reduction in their incomes as a result of low agricultural prices and falling rents (Clay 1984a:162). On top of this, again, they had to bear a much great rate of taxation. For example, after 1692 taxes were absorbing one fifth of the income of many gentry. Many of those at the lower fringes of the gentry had to part with their land (Clay 1984a:162). Declining economic fortunes of the gentry were reflected in their consumption patterns. Wheras the early seventeenth century witnessed a rapid expansion in the imports of luxury (Clay 1984a:26), after the Civil War there was significant change of ethos among the elites, leading to a reduction of conspicuous expenditure upon houses, clothes, and entertaining (Clay 1984a:160).

 

            The economic malaise affecting gentry extended into the eighteenth century. Thus, the average wealth of esquires in Norfolk and Suffolk was £700 in 1628–40 and then declined to £330 for the period of 1700–40, a drop of more than 50% in real terms (Overton 1996:39). The result was increased downward mobility, with an almost automatic descent by younger sons into lower social strata. For example, in Cumbria between 1680 and 1750 only one younger son of the gentry was able to purchase land and climb back up into the group (Beckett 1986:23). The upward mobility into the ranks of the gentry was similarly restricted. “With a few exceptions, the days when a man of fortune converted his wealth into landed acreage were already numbered by the end of the seventeenth century, and the practice had more or less disappeared by the mid-eighteenth century” (Beckett 1986:69).

 

            The numbers of elites shrank from the late seventeenth to the middle of the eighteenth century. Partly this was a result of diminished upward and enhanced downward mobility. Partly it was a result of the elite demographics (Hollingsworth 1964). Replacement rate (average number of adult sons per father) among the upper-rank elites declined below one after 1650, and kept declining (to below 0.8) until the first quarter of the eighteenth century (Figure 3.9). During the next quarter century it increased to 1.1, but it was not until after 1750 that the replacement rate achieved a healthy level of 1.3–1.4 it was to have to the middle of the nineteenth century. “Collectively, the peerage, baronetage and knighthood totalled only 1075 by 1760, a fall of 30 per cent since the beginning of the century, and among the lesser gentry in the counties the position appears to have been much the same” (Beckett 1986:98). These numbers are given in Table 3.4. Overall elite numbers declined from 18,500 to 13,000 (Table 3.1). As the number of landowning families shrank, the average size of estates tended to increase (Clay 1984a:158, 268).

Figure 3.9.  Replacement rates of peers (Hollingsworth 1964).

 

Table 3.4. Numbers of upper rank elites (Beckett 1986). There were also Irish and Scottish peers, not shown here.

year

Peers

Baronets

Knights

Total

1700

173

935

290

1398

1710

167

924

180

1271

1720

190

892

180

1262

1730

189

836

150

1175

1740

183

800

70

1053

1750

187

738

70

995

1760

181

713

70

964

1770

197

706

110

1013

1780

189

725

90

1004

1790

220

747

160

1127

1800

267

779

160

1206

 

 

Consequences of the Civil War: changed social mood

            When the Civil War began in 1642, the English could look back to a century of internal peace. “The risings of 1549 were quelled without undue difficulty. … The overthrow of Somerset was accomplished without bloodshed. Northumberland’s attempt to divert succession collapsed with only a hint of civil war. Mary’s regime, although hardly popular, achieved most of its initial objectives and never looked, even at the end, in danger of being overthrown. The harvests of the mid-1550s and the mid-1590s inflicted terrible sufferings upon the poor, but nowhere in England set off the large-scale risings … Elizabeth crushed the Presbyterian movement and effectively contained the Catholic threat, while Essex’s revolt collapsed into black comedy in twenty-four hours. … the succession crisis at the death of Elizabeth was solved dextrously and peacefully” (Williams 1995). “The last peasant revolt serious enough to send gentry fleeing from their homes in terror had been in 1549”, and “by 1640 two generations of gentry had gone by since the great fear, and memories had grown dim” (Stone 1972:76). Few among the elites could foresee the depth of the societal collapse that would result from their actions, and the intraelite conflict was allowed to escalate unchecked until it aquired a dynamic of its own.

 

            The two decades following 1640 were the most protracted and intense period of sociopolitical instability in England since the Wars of the Roses. The following two decades (after the Stuart Restoration) were, in contrast, internally a peaceful period. This alternation between civil war and internal stability, thus, provides another example of bigenerational cycle. Around 1680, however, social pressure began increasing again. Three parliaments came and went in rapid succession (1679–81). A reign of “legal terror” against Whigs and dissenters began in 1682. Several were executed, and others driven into exile (Hill 1982:169). When Charles II died in 1685, he was succeeded peacefully by James II, but the same year two risings took place. Argyll and Monmouth rebellions were rapidly suppressed, but when William of Orange landed in England three years later, the rebellion quickly spread, and James II chose to flee England. As a result of this “Glorious Revolution” (1688–90, with aftershocks in Scotland and Ireland until 1692), the Stuart dynasty was abolished, and Parliament offered the crown to William and Mary jointly. One remarkable feature of this revolution was its relative bloodlessness. Whigs and Tories disagreed sharply about a number of issues, but these differences were patched up, largely as a result of “men’s recollection of what happened forty-five years earlier, when unity of the propertied class had been broken” (Hill 1982:236). The compromise reached by the elites held up remarkably well throughout the whole of the eighteenth century and beyond. After the Glorious Revolution there were no major rebellions in Great Britain (as the union of England and Scotland was called after 1707), apart from two Jacobite risings, one in 1715–6 and another in 1745–6. These aftershocks followed the Glorious Revolution at roughly generational intervals: the first one was lead by James II’s son, and the second by his grandson.

 

The turn-around point: the mid-eighteenth century

            By the mid-eighteenth century, the last echoes of the early modern crisis have dissipated. Real wages increased throughout the early eighteenth century and reached a peak around 1750. The last serious disturbance of internal peace in Great Britain was the Jacobite rising in 1745–6. The numbers of the elites reached a minimum sometime around the 1760s. The ruling class achieved an unprecedented degree of unity. After the stabilization of the political system in 1721, landowners drastically reduced the number of both electors and contested elections to the Parliament (Stone and Stone 1984:14). The elite cohesiveness allowed them to tax themselves at an unprecedented rate for an early modern society; an ability that served England well during the century-long conflict with France culminating in the Napoleonic Wars. Thus, by the mid-eighteenth century, the stage was set for the astonishing demographic, economic, and territorial expansion England was to experience during the next century and a half.

 

3.6 Conclusion

            The demographic, economic, political, and social trends that we examined in this chapter generally moved in ways that were consistent with the predictions of the demographic-structural theory. The case of the English Revolution fits the demographic-structural theory particularly well, as was argued earlier by Goldstone (1991). The three ingredients of the revolution were the financial crisis of the state, acute competition and factionalism among the elites, and the existence of a large body of disaffected commoners who could be mobilized by parliamentary leaders against the royalists in London. Measures of all these processes increased during the second half of the sixteenth and the early seventeenth centuries, and peaked around 1640.

 

            As in the previous case study of the Plantagenet cycle, we found that the operation of the demographic-structural machinery was influenced and modified by other factors. The geopolitical environment apparently played a minor role during this cycle. Although it was the invasion by the Dutch Statholder, William of Orange, that precipitated the Glorious Revolution, the success of it was entirely due to internal factors.

 

            Long-term fluctuations of climate were probably important in contributing to population stagnation of the late seventeenth–early eighteenth century. During this cycle there were no traumatic exogenous events comparable to the arrival of the Black Death in 1348. The increase in the incidence of epidemics during the seventeemth century was apparently an endogenous process.

 

            The most important factor outside the core variables of the demographic-structural theory was the acceleration of social evolution that eventually resulted in the Industrial Revolution. Because of scientific and agronomic advances, crop yields began increasing shortly after 1600. During the seventeenth century yields doubled. As a result, the carrying capacity also doubled. We believe that it was this dramatic increase in the carrying capacity that explains why population numbers in England did not collapse to the same degree that happened in, for example, Spain or Germany in the seventeenth century. When we divide the total population by the estimated carrying capacity we observe that the resulting variable, the population pressure on resources, oscillated in a very similar fashion to what happened during the Plantagenet cycle (Figure 3.10).

Figure 3.10.  Population dynamics in England, 1150–1800 (see Appendix to this chapter). (a) Raw population numbers, average yields, and estimated carrying capacity. (b) Population pressure (population numbers in relation to carrying capacity, in percent of K) and the misery index (inverse real wages).

 

 

APPENDIX TO CHAPTER 3: DETRENDING POPULATION DATA

(from Turchin 2005)

 

England 1450–1800: Population Data

            Population numbers for the period 1540–1800 were taken from Table A.9.1 in Wriglely et al. (Wrigley et al. 1997). The quinquennial data of Wrigley et al. were resampled at decadal intervals. For the period 1450–1525 population data were taken from Hatcher (Hatcher 1977), also sampled at 10-y intervals (all data analyzed here were sampled at 10-y intervals). The value for 1530 was interpolated. The population data show an increasing long-term trend. Such nonstationarity violates one of the most important assumptions of nonlinear time-series analysis; thus, data need to be detrended (Turchin 2003a:175).

 

Detrending the English Population Data

            Agrarian revolution in England started during the seventeenth century (Grigg 1989, Allen 1992, Overton 1996). We can trace this revolution using data on long-term changes in grain yields (Grigg 1989, Overton 1996). Average wheat yields in the thirteenth century were around 10 bushels of grain per acre. Yields declined slightly during the fourteenth and fifteenth centuries to 8 bushels per acre (perhaps as a result of the worsening global climate). Even as late as the 1580s, the yields were still at their late medieval level. During the seventeenth century, however, yields began improving, increasing to ca. 15 in 1700 and 20–21 in the early nineteenth century (Grigg 1989:69). Net yields (subtracting seed corn) were lower. For example, the typical late medieval seeding rates were 2 bushels per acre; thus, the net yield was only 6 bushels per acre. Net yields from Grigg and Overton are plotted in Figure 10a. To capture the rising trend, we fitted the data after 1580 with a straight line (see Figure 10a, note the log-scale). The linear relationship appears to be an adequate description of the trend (for example, adding a quadratic term failed to better the regression in a statistically significant fashion).

 

            We can obtain an approximate estimate of the carrying capacity by assuming that it was proportional to the net yield. Assuming the total potentially arable area of 12 mln acres (Grigg 1989) and that one individual (averaging over adults and children) needs a minimum of one quarter (8 bushels or 2.9 hectoliters) of grain per year, we calculated the carrying capacity of England shown by the broken line in Figure 10a (by coincidence 1 bushel of net yield per acre translates exactly into 1 million persons of carrying capacity).

 

            We can now detrend the observed population numbers by dividing them with the estimated carrying capacity. The detrended population, which can also be thought of as “population pressure on resources” is defined as N'(t) = N(t)/K(t). Note that the critical assumption here is that K is proportional to the net yield, Y; since Y is the only quantity varying with time in the formula, other components (total arable area, consumption minimum) being constant multipliers, K will wax and wane in step with Y. In other words, the exact values of constant multiples do not matter, since we are interested in relative changes of population pressure. Note that the estimate of K is based not on the area that was actually cultivated (this fluctuated up and down with population numbers), but on the potentially arable area. The latter quantity fluctuated little across the centuries (for example, as a result of some inundation of coastal areas during the Middle Ages or more recent reclamation using modern methods) and can be approximated with a constant without a serious loss of precision.

 

            A test of the appropriateness of this detrending was obtained by regressing the estimated population pressure on real wages reported by Allen (2001). There was a very close inverse relationship between these two variables, and not a very good one if we were to use the non-detrended population numbers. As Figure 10b shows, population pressure and inverse real wage fluctated virtually in perfect synchrony.

 

 

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