Do Bank Capital and Liquidity Affect Real Economic Activity in the Long Run? A VECM Analysis for the US

This paper analyses the long‐term economic costs of the new regulatory standards (the so‐called Basel III reform) for the US. Using a Vector Error Correction Model that estimates long‐run relationships among a small set of macro‐variables over the period 1994–2008, it shows that tighter capital and liquidity requirements have negative (but rather limited) effects on the level of long‐run steady‐state output and more sizeable effects on banks’ return on equity. The economic costs are considerably below the estimated positive benefit that the reform should have by reducing the probability of banking crises and the associated banking losses ( BCBS, 2010b ).