Thomas Robert Malthus

Overview

Thomas Robert Malthus (13 February 1766 – 29 December 1834) was an English cleric and political economist, from 1805 professor of political economy at the East India Company's college at Haileybury — reportedly the first such academic post in Britain.[1] He is best known for An Essay on the Principle of Population (1798), which argued that population tends to grow faster than the food supply, so that poverty, famine, and vice act as inevitable checks on human numbers.[1] Henry George devoted much of Book II of Progress and Poverty (1879) to refuting this claim, arguing that rising population expands the division of labor and productive power rather than simply outrunning subsistence, and that Malthusian theory wrongly let economic and political causes of poverty off the hook.[2]

Less well known in the population debate is Malthus's separate, foundational contribution to rent theory: his 1815 pamphlet An Inquiry into the Nature and Progress of Rent set out a differential theory of rent — that rent is a surplus enabled by the scarcity of fertile land, not a cost added to prices. Malthus there defines rent as "that portion of the value of the whole produce which remains to the owner of the land, after all the outgoings belonging to its cultivation, of whatever kind, have been paid, including the profits of the capital employed," and locates its "immediate cause" in "the excess of price above the cost of production at which raw produce sells in the market."[3] While fertile land remains abundant, he writes, "this surplus produce, this bountiful gift of Providence, shews itself chiefly in extraordinary high profits, and extraordinary high wages, and appears but little in the shape of rent... nobody of course will pay a rent to a landlord" — rent emerging only once the "diversities of soil and situation" force cultivation onto poorer land.[3] The pamphlet was published essentially simultaneously with (by some accounts slightly ahead of) similar pamphlets by David Ricardo, Robert Torrens, and Edward West, making the four of them independent co-discoverers of what became the classical Law of Rent.[3][4] Ricardo's fuller development of the theory eclipsed Malthus's priority in most later histories of economics.[4]

George's Engagement with Malthus

George's quarrel with Malthus is not only over population. In Book II of Progress and Poverty George shows how Malthus's population doctrine was fused with the Ricardian rent theory Malthus himself had helped found, into what George calls a "triple combination": "Ricardo... furnished the Malthusian theory an additional support by calling attention to the fact that rent would increase as the necessities of increasing population forced cultivation to less and less productive lands... In this way was formed a triple combination, by which the Malthusian theory has been buttressed on both sides — the previously received doctrine of wages and the subsequently received doctrine of rent."[2] George's target is precisely this mutually reinforcing structure: he accepts the differential law of rent (Malthus's 1815 contribution) while rejecting the Malthusian population premise that, joined to it, made poverty appear a law of nature rather than a remediable effect of land monopoly.[2]

See Also

• David Ricardo — co-discoverer of the same rent theory in 1815, and Malthus's frequent theoretical sparring partner
• Law of Rent — the differential theory both economists arrived at independently
• Progress and Poverty — the George book whose Book II is largely devoted to rebutting Malthus
• Henry George — rejected Malthusian population theory as a moral evasion of remediable poverty
• Economic Theory in Retrospect — Blaug's standard historiography of the 1815 rent-theory episode

Sources

1. "Thomas Robert Malthus," Wikipedia — used for birth/death dates, the Haileybury professorship, and the core argument of the 1798 Essay (basic biographical facts). Wikipedia
2. Henry George, Progress and Poverty (1879), Book II (esp. Ch. I, "The Malthusian Theory, its Genesis and Support") — this wiki's discovery source for Malthus's role as the theoretical target of George's argument that population growth need not cause poverty. The "triple combination" passage quoted above was verified verbatim this session against the repository's hosted public-domain full text of Progress and Poverty. Book page · hosted full text
3. Thomas Robert Malthus, An Inquiry into the Nature and Progress of Rent, and the Principles by which it is Regulated (London: John Murray, 1815) — primary text of the rent pamphlet; the definition of rent, the "immediate cause... excess of price above the cost of production," and the "bountiful gift of Providence" passage quoted above were verified verbatim this session against the Internet Archive full-text scan. Internet Archive scan (identifier inquiryintonatur00maltuoft)
4. Mark Blaug, Economic Theory in Retrospect (5th ed., 1997), Ch. 3, 5 — this wiki's discovery source for situating Malthus's 1815 pamphlet alongside Ricardo, West, and Torrens as independent co-discoveries of the classical rent theory (A-claim; scan provenance pending owner attestation — see book page). Book page The exact priority ordering among the four 1815 rent pamphlets is reported inconsistently across secondary sources and should be confirmed against a primary history-of-thought source in a future revision.