CAPITAL ADEQUACY REQUIREMENTS AND THE FINANCIAL ACCELERATOR CAUSED BY BANK CAPITAL

This paper develops a computable dynamic general equilibrium model with heterogeneous banks, a portion of which may be constrained by capital adequacy requirements and the remainder of which may not, in order to examine what effects the capital requirements and bank capital induce in the macroeconomy. Applying the parameterized expectations algorithm, the model economy shows that binding bank capital constraints induce the financial accelerator, the hump-shaped dynamic behaviour of output, and ineffectuality of monetary policy, and that all the results are derived from the individual banks' cross-sectional asymmetric responses that are consistent with the empirical evidence.