Georgism

Georgism is an economic philosophy built on a single, striking moral claim: people own what they create, but no one created the land. Henry George, a 19th-century American journalist and self-taught economist, developed the theory in his 1879 book Progress and Poverty, one of the bestselling works of economic thought ever written. George was living through the Gilded Age and was puzzled by a paradox he could not shake: why did poverty deepen as civilization advanced? His answer was that as cities grew and communities built infrastructure, schools, and railroads, the value of land in those cities rose dramatically — not because landowners had done anything, but because the surrounding community had. Landowners were capturing value they did not create. George's solution was the Land Value Tax: a levy on the unimproved value of land that would replace all other taxes, returning to the community the value the community had created. He believed this single reform could end poverty, fund public services, and stimulate productive economic activity all at once.

Examples of Georgism

Henry George's Own Political Career — New York City, 1886
George ran for mayor of New York City in 1886 and came remarkably close to winning, finishing second out of three candidates and ahead of a young Theodore Roosevelt. His campaign demonstrated that Georgist ideas had genuine mass appeal among working-class voters, particularly in cities where speculative land values made housing unaffordable.
The Single Tax Movement — United States and United Kingdom (late 19th to early 20th century)
George's ideas inspired a global political movement in his lifetime. "Single Tax" clubs and political organizations formed across the United States, Australia, New Zealand, and the United Kingdom. Several small municipalities in Pennsylvania still operate under partial land value taxation to this day.
Estonia's Land Value Tax (1993 to present)
Following independence, Estonia implemented a land value tax as part of its post-Soviet economic reforms. The tax has been credited with contributing to Estonia's relatively efficient land use and is frequently cited by modern Georgists as a working contemporary example.
Albouy and Ehrlich's Housing Research
Contemporary economists studying housing crises in cities like San Francisco, London, and Sydney have found strong empirical support for Georgist analysis: land speculation and land hoarding by passive owners are significant drivers of housing unaffordability, lending credence to the case for land value taxation as a policy tool.

Strengths

The Land Value Tax cannot be avoided by moving production offshore or hiding income; land cannot be relocated
Discourages land speculation and the hoarding of vacant urban land, encouraging productive use
Does not penalize work, investment, or improvement — only the unearned value of location
Could significantly reduce housing costs by making idle land expensive to hold
Milton Friedman, no radical, called the land value tax "the least bad tax"

Weaknesses

Accurately assessing the "unimproved" value of land, separate from buildings, is technically difficult and contested
A single tax on land alone may not generate enough revenue to fund a modern government
Would place a heavy burden on long-established landowners, including farmers and longtime homeowners, who may be land-rich but cash-poor
Has never been implemented at full scale, so its promises remain partly theoretical
Faces fierce political resistance from landowners, who constitute a powerful constituency in most democracies

Interpretation

Georgism has the quality of an idea that seems outlandish until you think about it carefully, at which point it becomes hard to dismiss. The moral argument is tight: a landowner who sits on a vacant lot in central Manhattan for thirty years while its value increases from a million to fifty million dollars has not earned that increase. The city, its workers, and its infrastructure created it. Taxing that increase back into the public treasury seems not only just but obviously correct. The practical obstacles are real: valuation is hard, political resistance is enormous, and the single-tax vision is almost certainly insufficient to fund 21st-century government on its own. But most modern Georgists are not pushing for a single tax; they are pushing for land value taxation as a component of a broader reform. In that more modest form, the idea has growing support across the political spectrum, from libertarians who like eliminating distortionary taxes to progressives who want to address housing inequality.

Relevant Literature

Progress and Poverty by Henry George (1879)
The Condition of Labor by Henry George (1891)
Land and Liberty (journal of the United Kingdom Land Value Taxation Campaign)
Georgism and the Land Value Tax by Fred Foldvary
The Power of Land by various Georgist scholars

References

Wikipedia, "Georgism"
EBSCO Research Starters, "Georgism"
Econlib, "Henry George"
Econlib, "Land Taxes: The Return of Henry George"