HEC Research Papers Series,
HEC Paris

Abstract: I study the recovery of the Roman economy following the papacy's sojourn in France (1309-1377). I show that a reform of inheritance laws in 1480 gave rise to an era of palace-building resulting in the construction of over 35% of palaces built in Roman history. Using a novel dataset that links information on investment projects and patrons, I provide evidence that the reform, which allowed prelates to bequeath their possessions, caused a significant increase of prelate palace-building relative to their lay counterparts (who were not directly affected by the reform). Initial prelate investment then guaranteed that the papacy would remain in Rome long-term, which eventually incentivized laymen to invest-though the return of the papacy to Rome itself had failed to induce investment. Increased confidence in Rome's future also manifested in more ambitious projects, across all patrons. I disentangle the effect of commitment to long-term presence from the effects of contemporaneous papal presence in Rome to show that the irreversibility of institutional change is a necessary condition for successful intervention.

Keywords: investment

JEL-codes: A00

79 pages, March 6, 2025

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