Summary
Homer Hoyt’s 1933 dissertation “One Hundred Years of Land Values in Chicago” is the foundational empirical work underlying all modern claims about the 18-year real estate cycle. By analyzing Chicago land values from the 1830s through 1933, Hoyt documented five major cycle peaks (1837, 1856-57, 1872-73, 1890-93, 1925-29) and identified the “approximately 18-year” rhythm. He also described the cycle’s 20-element anatomy — the specific sequence of indicators that rise and fall in the same order every time. All subsequent 18-year cycle researchers (Harrison, Foldvary, Anderson, Gaffney) cite Hoyt as their empirical foundation. Paradoxically, Hoyt later concluded the cycle had been “eliminated” by modern economic management — a claim Fred Harrison directly refutes in “The Hoyt Heist” using Hoyt’s own investment biography.
The Original Data (Hoyt 1933)
Five major cycle peaks documented in Chicago:
| Peak Year | Prior Peak | Interval |
|---|---|---|
| 1837 | — | — |
| 1856 | 1837 | 19 years |
| 1872-73 | 1856 | 16-17 years |
| 1890-93 | 1872 | 18-20 years |
| 1925-29 | 1890 | 35 years (WWI disruption) |
Note: The 1907-09 peak is sometimes listed but Hoyt treats it as a minor cycle. The 35-year gap (1890–1925) is explained by WWI and post-war recovery extending the upswing.
Hoyt’s 20-Element Cycle Anatomy
Hoyt identified 20 sequential elements in the cycle pattern. Gaffney (2009) consolidates these into the key sequence:
- Population grows → rents rise → building values rise
- New building boom begins; easy credit for builders, buyers, subdividers
- Migration creates demand: migrants leave old homes, needing new ones
- Construction creates jobs → more demand
- Outside money flows in; local land becomes collateral for external capital inflows
- “Shoestring financing” emerges (1930s term for subprime)
- Vacant land absorbed; land prices boom outward
- Government spends on infrastructure on borrowed money (boosting land prices)
- Population growth slows but “authoritative” forecasts project continued growth — “irrational exuberance”
- “Builders’ Illusion” — builders conflate rising land prices with return on building investment
- Expert appraisals become circular (based on rising comparables)
- Rising debt service overtakes new capital inflows
- Corruption comes to light
- Banks shift from short-term commercial loans to long-term land collateral loans
- Bid prices collapse while ask prices hold → deeds recorded plunge even as reported prices stay high
- Subprime foreclosures begin → distress sales force prices down
- Bank capital eroded → lending stops → some banks fail
- Self-financed firms fare better but capital returns more slowly
- Building stops; unemployment rises
- Governments blame falling land values and try to sustain them — prolonging the depression
Hoyt’s Key Methodological Contributions
- Multi-indicator approach: Deeds recorded, permits, lots subdivided, rents, and land prices are five separate indicators — they don’t all peak simultaneously; understanding their sequence is the key to forecasting
- City-level variation: Chicago peaked 1890; LA peaked 1887; NYC peaked 1930 — the national cycle is an average of locally-timed cycles
- Sustained growth vs. transient booms: Risk depends not on growth rate but on whether the growth drivers are permanent (diversified economy) or transient (mining, lumber)
Hoyt’s Later Reversal (and Harrison’s Refutation)
- 1933: Hoyt predicted cycles might become “of interest only to historians” if modern economic management eliminated them
- 1968: Hoyt formally concluded “the fluctuations in the real estate cycle which characterised our economy in the 150 years prior to 1933, have ceased”
- 1976-78: Reaffirmed this view in correspondence and interviews with Harrison
- Harrison’s 1983 “Hoyt Heist” chapter: Demonstrates Hoyt was wrong by showing:
- Hoyt’s own land deals (Fairfax County VA: trough-bought 1951, sold 1972 at 2,500% profit — a 20-year span) show classic cycle timing
- REITs (1969-1974) replicated the same speculative pattern as pre-1929 land trusts
- The 1973-74 recession was land-cycle driven (not oil shock)
- Chicago appraisers confirmed post-war land value cycles [Source: harrison-power-in-the-land-hoyt-heist.pdf]
Foldvary’s Use of the Data
Foldvary reproduces the Hoyt data in The Depression of 2008 (p.3) with extensions to 2006:
Peaks: 1818, 1836, 1854, 1872, 1890, 1907, 1925, [WWII gap], 1973, 1979, 1989, 2006
He uses this table as the backbone of his prediction: 1990 + 18 = 2008. [Source: foldvary-depression-of-2008.pdf]
Gaffney’s Validation and Extension
Gaffney (2009) confirms the pattern extends back 800 years globally (with only major wars/plagues disrupting it), and that Fisher’s parallel research showed the same pattern in six other US cities simultaneously. The Hoyt Chicago data was not a local anomaly but representative of a structural national cycle. [Source: gaffney-role-of-land-markets-2009.pdf]
The Hoyt Heritage in PSE
Phil Anderson’s The Secret Life of Real Estate and Banking (2008) is largely an extension of Hoyt’s methodology to 200 years of US data. Anderson’s “same sequence of leading and lagging indicators in each cycle” finding — endorsed by Gaffney — is Hoyt’s methodology applied to a longer dataset. The PSE framework can be understood as the Hoyt methodology brought to current investment practice.
Cross-References
- Homer Hoyt — the originator
- 18.6-Year Real Estate Cycle — the cycle Hoyt empirically discovered
- Fred Harrison — used Hoyt’s data and refuted his later reversal
- Fred Foldvary — used Hoyt’s data as backbone of his 2008 prediction
- Mason Gaffney — validated and extended Hoyt’s findings in 2009
- Phil Anderson — extended Hoyt’s methodology to full US history
- Geo-Austrian Synthesis — Foldvary’s theory built on Hoyt’s empirical foundation