Hirano & Stiglitz (2025): Henry George, Land Speculation, and Economic Growth and Transformation
A 2025 Oxford Review of Economic Policy paper by Hirano & Stiglitz builds a formal model showing land speculation depresses productive investment and long-run growth, and that land taxation can raise the equilibrium growth rate — an explicit, modern theoretical vindication of George's 1879.
Summary
"Henry George, land speculation, and economic growth and transformation," by Tomohiro Hirano (Royal Holloway, University of London) and Joseph E. Stiglitz, Oxford Review of Economic Policy 41(2), 2025, pp. 326–357 (DOI: 10.1093/oxrep/graf031). This is the flagship, explicitly Georgist-titled paper in a coherent Hirano-Stiglitz research program running from 2022 to 2026 — a sequence of formal overlapping-generations (OLG) models examining how land speculation, credit, and monetary policy interact to shape long-run economic growth. This paper is the one that puts Henry George's name in its title and directly engages his argument, making it the natural anchor for the wiki's coverage of the whole program (see "The Wider Hirano-Stiglitz Research Program" below for the other five papers).
The Argument
The paper builds a formal growth model in which land market reform — the transition from a regime where land cannot be freely bought and sold to one where it can — opens the door to land speculation, and traces the consequences for long-run productivity and growth. Land speculation, in this framework, depresses productive investment: capital that would otherwise flow into manufacturing, infrastructure, or other growth-generating activity is instead diverted into bidding up the price of a fixed, non-produced asset. The paper's policy result is the direct formal payoff: land taxation can raise the economy's equilibrium growth rate by reducing the return to unproductive land speculation relative to productive investment, redirecting resources toward the sector that actually grows the economy.
Crucially, the paper does not simply restate George's 1879 case — it goes beyond it. Where George's own proposal was the single tax on land value as the fiscal instrument, Hirano and Stiglitz analyze land taxation as one lever within a broader toolkit of government policies and institutional arrangements that can mitigate land speculation's harms and raise growth and welfare, treating the question with the machinery of modern growth-and-fluctuations theory rather than as a normative single-tax argument.
Relation to the Georgist Case
This paper is arguably the strongest recent piece of mainstream theoretical validation the wiki has for the core Georgist growth argument, precisely because of who is making it: a Nobel laureate economist, publishing in a flagship policy journal, under a title that names Henry George directly and states the paper is about his ideas. It sits alongside Stiglitz's own Henry George Theorem as the second major instance of Stiglitz explicitly engaging George's legacy formally — but where the HGT is about the revenue side (land rent can fund public goods), this paper is about the growth side (land speculation crowds out the investment that drives growth, and taxing land reverses that crowding-out). It also strengthens the benefit that LVT dampens land speculation with a fully worked formal growth-theoretic mechanism, complementing that page's more empirical/institutional evidence base.
Nuances and Limits
- Abstract/secondary-source level. The Oxford Academic full-text and PDF are not publicly accessible; no NBER working-paper predecessor of this specific paper was found (unlike the program's other papers, this one appears to have been written directly for the Oxford Review symposium issue). This page is built from the published abstract and characterizations in secondary coverage, corroborated by the wiki's own prior direct verification (see the 18.6-year-cycle source-record page, which confirms the paper "models how land speculation depresses productive investment and long-run growth, and how land taxation can raise the equilibrium growth rate" and — this matters — that it does not propose or endorse any fixed cycle length or periodicity claim).
- Formal theory, not empirics. Like the rest of the research program, this is a theoretical growth model, not an empirical estimate of how much growth land speculation actually costs a real economy; it should be read as establishing a mechanism and its qualitative direction, not a magnitude.
- Not a periodicity paper. Despite being cited by cycle-theory writers, this paper contains no claim about an 18-year or 18.6-year land cycle; readers should not treat its citation alongside cycle-length claims as an endorsement of periodicity.
The Wider Hirano-Stiglitz Research Program
This paper is one of at least six Hirano-Stiglitz papers (2022–2026) building a coherent, increasingly general theory of land, credit, and growth in OLG models:
- Hirano & Stiglitz (2022): Land Speculation and Wobbly Dynamics with Endogenous Phase Transitions — the foundational land-and-capital OLG model showing "wobbly" boom-bust land-price dynamics under rational expectations.
- Hirano & Stiglitz (2022): The Wobbly Economy — Global Dynamics with Phase and State Transitions — the companion paper generalizing the wobbly-dynamics mechanism to a standard production economy (without land specifically).
- Hirano & Stiglitz: Credit, Land Speculation, and Growth / Low-Interest-Rate Policy — sectoral credit composition (real-estate vs. manufacturing financing) as the key growth determinant.
- Hirano & Stiglitz (2025): Growth and Fluctuations in Economies with Land Speculation — an OLG model with credit constraints and endogenous technology, showing monetary/fiscal accommodation can paradoxically reduce growth by channeling resources into land speculation.
- Hirano & Stiglitz (2025): Overlapping Generations Models, Multiplicity of Steady States and Momentary Equilibria, and Economic Fluctuations — the general mathematical-economics companion piece in the same Oxford Review issue.
Bears On
- Benefit: LVT dampens land speculation — a formal growth-theoretic mechanism for why taxing land reduces speculative crowding-out of productive investment.
- Objection: Progress and Poverty is outdated — direct evidence against: a Nobel laureate builds a 2025 formal growth model explicitly engaging and extending George's 1879 argument.
- Concept: Henry George Theorem — Stiglitz's other major formal engagement with George, on the revenue rather than growth side.
See Also
- Joseph Stiglitz · Tomohiro Hirano
- LVT dampens land speculation
- Henry George Theorem
- 18-Year Land Cycle — the periodicity claim this paper does not make, for contrast
- Progress and Poverty is outdated (objection)
Sources
- Tomohiro Hirano & Joseph E. Stiglitz (2025), "Henry George, land speculation, and economic growth and transformation," Oxford Review of Economic Policy 41(2): 326–357. DOI: 10.1093/oxrep/graf031 · Article page — used for the paper's core argument (land market reform → speculation → depressed productive investment → land taxation raises equilibrium growth), the "goes beyond Henry George's (1879) suggestion" framing, and the paper's place in the wider research program. Full text not accessible at last review (2026-08-18); built from the published abstract and cross-checked against the direct verification already on the 18.6-year-cycle source-record page, which independently confirms the "depresses productive investment and long-run growth"/"land taxation can raise the equilibrium growth rate" characterization and the absence of any periodicity claim (B-claim; abstract-level scan).