Bank Liquidity and Capital Regulation in General Equilibrium
38 Pages Posted: 14 Sep 2014
Date Written: September 12, 2014
We develop a nonlinear dynamic general equilibrium model with a banking sector and use it to study the macroeconomic impact of introducing a minimum liquidity standard for banks on top of existing capital adequacy requirements. The model generates a distribution of bank sizes arising from differences in banks' ability to generate revenue from loans and from occasionally binding capital and liquidity constraints. Under our baseline calibration, imposing a liquidity requirement would lead to a steady-state decrease of about 3 percent in the amount of loans made, an increase in banks' holdings of securities of at least 6 percent, a fall in the interest rate on securities of a few basis points, and a decline in output of about 0.3 percent. Our results are sensitive to the supply of safe assets: the larger the supply of such securities, the smaller the macroeconomic impact of introducing a minimum liquidity standard for banks, all else being equal. Finally, we show that relaxing the liquidity requirement under a situation of financial stress dampens the response of output to aggregate shocks.
Keywords: bank regulation, liquidity requirements, capital requirements, incomplete markets, idiosyncratic risk, macroprudential policy
JEL Classification: D52, E13, G21, G28
Suggested Citation: Suggested Citation