I estimate the comparative causal effects of monetary policy "leaning against the wind" (LAW) and macroprudential policy on bank-level lending and leverage by drawing on a single natural experiment. In 1920, when U.S. monetary policy was still decentralized, four Federal Reserve Banks...

This paper develops a theory of the secondary market trading of financial securitities in which endogenous asset market dynamics generate periods of growing aggregate credit volumes and falling credit standards even in the absence of "financial shocks." Falling credit standards in turn lead to...

This paper studies leverage regulation and monetary policy when equity investors and/or creditors have distorted beliefs relative to a planner. We characterize how the optimal leverage regulation responds to arbitrary changes in investors' and creditors' beliefs and relate our results to...