Henry George and Clark's Paradigm: The Erasure of Land in Economic Theory (Charlier & Tideman, 2025)

Summary

"Henry George and Clark's Paradigm: The Erasure of Land in Economic Theory (A Historical-Philosophical Analysis)," by Niels Charlier and Nicolaus Tideman (Virginia Tech), is a HAL preprint (September 2025). It makes the historical case, in far more depth than the wiki's existing pages summarize, for a claim the wiki's objection: land is just capital page already traces to John Bates Clark: that the merger of land into "capital" in mainstream economic theory was not a neutral scientific advance but a targeted response to Henry George's Progress and Poverty (1879).

The Argument

The paper's central claim is that Clark's Capital and Its Earnings (1888) — which eliminated land as a distinct factor of production, leaving only labor and capital — was written in direct reaction to George. The evidence assembled includes:

• Contemporary testimony from an unfriendly witness. Frank Fetter (1927) — himself an opponent of George and a Clark ally, which the authors note makes his testimony more credible, not less — wrote that the "probable source from which immediate stimulation came to Clark was the contemporary single tax discussion," adding that one can "hardly fail to see on almost every page the reflections of the contemporary single-tax discussion" in Capital and Its Earnings.
• A wave of academic response. Mason Gaffney's count of at least 24 works in 28 years directed against George by academic economists.
• An ironic borrowing. The paper argues (citing Stabile 1995) that Clark's own marginal productivity theory was itself partly derived from George's wage theory — Clark borrowed analytical tools from George to build the framework that would erase George's central argument.
• A metaphysical rather than empirical justification. Quoting Gaffney & Harrison (1994), the authors argue Clark's two-factor model rests on endowing "capital with a Platonic essence, a deathless soul transcending and surviving its material carcass" — a definitional move, not an empirical one.
• Rhetorical mischaracterization. Clark's own foreword to Capital and Its Earnings claims his principles "settle questions of agricultural socialism" — the authors argue Clark, who understood George's actual (explicitly anti-nationalization) program, was deliberately mischaracterizing it.
• A telling counter-example. Alfred Marshall, though critical of George's distribution theory, nonetheless favored land value taxation and did not adopt Clark/Fetter/Knight's two-factor model — evidence, the authors argue, that the shift to erasing land was a specific, contestable choice rather than an inevitable consensus.

How the Erasure Persisted

The paper argues the erasure was sustained less by ongoing scientific debate than by (a) academic consensus-building around Clark, Frank Fetter, and Frank Knight; (b) the rise of socialism as the dominant progressive alternative after World War I, which absorbed George's audience into a Marxist class framework that does not distinguish land from capital; and (c) a political realignment around the size of government that displaced the classical land/labor/capital framing entirely. The authors cite the Mirrlees Review's 2011 puzzlement at why land value taxation, despite an "almost undeniable" economic case, remains politically marginal, reading this as further evidence the exclusion is sociological rather than scientific. The paper's most striking piece of original evidence is a table listing 28 prominent economists — including Nobel laureates Robert Solow, Franco Modigliani, James Tobin, and William Vickrey — who signed Tideman's own 1990 open letter to Mikhail Gorbachev advocating land rent socialization, offered as evidence that many mainstream economists privately accept core elements of George's thesis while avoiding public advocacy.

Relation to the Georgist Case

This substantially deepens the wiki's existing land-is-just-capital and marginal productivity coverage, which had summarized Clark's move briefly; here it becomes a fully argued historical case, co-authored by one of the wiki's most-cited living Georgist economists. It reframes the standard "land isn't really distinct from capital" objection not as a settled scientific finding but as a specific, contested 1880s-90s theoretical choice with an identifiable polemical motive.

Nuances and Limits

• A broad historical-philosophical essay, not narrow archival history. The paper draws substantially on secondary sources (Gaffney, Fetter, Stabile, Hudson) rather than presenting extensive new primary-source correspondence; its strongest original contribution is the Gorbachev-letter signatory table, not new archival material on Clark himself.
• A preprint, not yet peer-reviewed.
• Full text read directly (A-claim). The complete 33-page PDF was obtained via the paper's OSF/SocArXiv mirror (HAL's own repository page returned an anti-bot wall to this session) and read in full.

Bears On

• Objection: Land Is Just Capital — substantially deepens the historical case that Clark's collapse of land into capital was a targeted, polemical response to George rather than neutral theory.
• Concept: Marginal Productivity — the theory this paper argues was politically motivated in its origin.
• Person: Nicolaus Tideman — co-author; the Gorbachev-letter signatory table is drawn from his own 1990 advocacy history.

See Also

• Objection: Land Is Just Capital
• Marginal Productivity
• Nicolaus Tideman
• John Bates Clark
• Factors of Production

Sources

1. Niels Charlier & Nicolaus Tideman (2025), "Henry George and Clark's Paradigm: The Erasure of Land in Economic Theory (A Historical-Philosophical Analysis)," HAL preprint hal-05267875, version 3, dated 16 September 2025. hal.science/hal-05267875 — HAL's own repository page blocked by an anti-bot wall to this session; full 33-page text obtained via the paper's OSF/SocArXiv mirror (api.osf.io, preprint id ep2a6_v3) and read in full 2026-08-30 — used for the Fetter (1927) quotation, the Gaffney anti-George-works count, the Stabile (1995) borrowing claim, the Gaffney & Harrison (1994) "Platonic essence" quotation, the Marshall counter-example, the erasure-persistence argument, the Mirrlees Review citation, and the 28-economist Gorbachev-letter signatory table (A-claim; full text).