We analyze the impact of contractionary monetary policy through increases in reserve requirements on bank lending. We compare the lending behavior of banks that were subject to the requirement increases in 1936-37, Federal Reserve member banks, to a group of banks that were not subject to the reserve increase, Federal Reserve nonmember banks. After implementing the difference-in-difference estimators, we find that the increases in reserve requirements did not create financing constraints for member banks and lead them to reduce lending. Therefore, the actions of the Federal Reserve concerning the required reserve ratios cannot be blamed for instigating the economic downturn of 1937-38.