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Finance and Economics Discussion Series logo links to FEDS home page The Competitive Effects of Risk-Based Bank Capital Regulation: An Example from U.S. Mortgage Markets
Diana Hancock, Andreas Lehnert, Wayne Passmore, and Shane M. Sherlund

Abstract: Basel II bank capital regulations are designed to be substantially more risk sensitive than the current regulations. In the United States, only the largest banks would be required to adopt Basel II; other depositories could choose to adopt such standards or to remain under the Basel I capital standards. We consider possible effects of this two-pronged or "bifurcated" approach on the market for residential mortgages. Specifically, we analyze whether those institutions that adopt Basel II will enjoy lower costs than nonadopters and whether they have an incentive to retain mortgages in their own portfolios. We find that (1) despite the large differences in regulatory capital requirements between adopters and nonadopters, it is unlikely that there will be any measurable effect of Basel II implementation on most mortgage rates and, consequently, any direct impact on the competition between adopters and nonadopters for originating or holding residential mortgages; (2) the most significant competitive impact may be felt among mortgage securitizers; and (3) adopters might have increased profits from some mortgages relative to nonadopters because they will capture some of the deadweight losses that occur under the current regulatory regime, but nonadopters would likely retain their market shares.

Keywords: bank capital regulation, mortgages, market competition, government-sponsored enterprises, GSEs

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Last update: December 21, 2006