Design of Macro-Prudential Stress Tests

Design of Macro-Prudential Stress Tests

By Dmitry Orlov, Pavel Zryumov, Andrzej Skrzypacz
May 30,2017Working Paper No. 3548

We study the design of macro-prudential stress tests and capital requirements. The tests provide information about correlation in banks portfolios. The regulator chooses contingent capital requirements that create a liquidity buffer in case of a fire sale. The optimal stress test discloses information partially: when systemic risk is low, capital requirements reflect full information. When systemic risk is high, the regulator pools information and requires all banks to hold precautionary liquidity. With heterogeneous banks, weak banks determine level of transparency and strong banks are often required to hold excess capital when systemic risk is high. Moreover, dynamic disclosure and capital adjustments can improve welfare.

Keywords
stress tests, systemic risk, capital requirements, information design