Karl Pribram, Some Dynamic Aspects of the Urban Ground Rent: II. United States (1939)

In this published conference abstract, Pribram compares American and European urban ground rent to explain differences in construction cycles. His central hypothesis connects building activity to general business fluctuations while assigning mortgage finance a decisive role in modifying rent’s regulatory influence.

Pribram first distinguishes differences of degree from differences of mechanism. Differential rents associated with location and intensity of land use have reached greater proportions in American cities, although their foundations resemble those in Europe. Rapid urban development intensifies these differences. Residential districts also experience real-estate cycles connected to longer-term changes in housing standards, habits, and population movements, rather than directly to construction fluctuations.

The central question concerns the relationship between building cycles and general business activity. Pribram identifies the interpretation he seeks to reconsider:

The view prevails that, as distinct from European building fluctuations, cycles in American building activity are not primarily, if at all, ruled by the same forces which are instrumental in determining the course of general business fluctuations.

American building cycles last longer and fluctuate more sharply than business cycles. Population movements have commonly been offered as an explanation. Pribram nevertheless questions whether construction costs or prior increases in land values can account for building booms; land values tend instead to follow substantial construction expansion. Drawing on Charles F. Roos’s statistical analysis of St. Louis and other studies, he asks how strongly absolute ground rent governs construction.

His explanation emphasizes the institutional conditions under which rent operates. In the United States, absolute ground rent appears less effective in regulating construction than in Europe: even substantial declines need not restrain building once a prosperity period has set it in motion.

Such situations could hardly develop but for the structure of the American mortgage market which is marked by a far greater capacity of expansion than the corresponding European markets.

Mortgage expansion therefore helps sustain construction despite deteriorating rental conditions. Depression produces a different obstacle. The rental increases that encouraged the boom may disappear, and an entire business cycle can pass without restoring a rental-cost relationship favorable to new building. Even when that relationship improves, foreclosed properties held by financial institutions can delay recovery: demand must absorb these holdings before construction revives, potentially after costs have already risen.

Pribram’s conclusion remains conditional. American and European construction may respond to the same underlying business-cycle forces, while differences in mortgage-market organization alter their timing and amplitude. The abstract thus links ground rent, credit expansion, and foreclosure inventories in an explanation that goes beyond costs or demographic change alone. Its policy implication is to bring American building fluctuations closer to the European pattern by restoring the influence of absolute ground rent over construction.