TY - UNPD A1 - Behn, Markus A1 - Haselmann, Rainer A1 - Vig, Vikrant T1 - The limits of model-based regulation T2 - LawFin working paper ; No. 20 N2 - Using loan-level data from Germany, we investigate how the introduction of model-based capital regulation affected banks’ ability to absorb shocks. The objective of this regulation was to enhance financial stability by making capital requirements responsive to asset risk. Our evidence suggests that banks ‘optimized’ model-based regulation to lower their capital requirements. Banks systematically underreported risk, with under reporting being more pronounced for banks with higher gains from it. Moreover, large banks benefitted from the regulation at the expense of smaller banks. Overall, our results suggest that sophisticated rules may have undesired effects if strategic misbehavior is difficult to detect. T3 - LawFin Working Paper - 20 Y1 - 2021 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/61660 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-616608 UR - https://ssrn.com/abstract=3902462 EP - 67 PB - Center for Advanced Studies on the Foundations of Law and Finance, House of Finance, Goethe University CY - Frankfurt am Main ER -