The impacts of Gramm–Leach–Bliley bank diversification on value and risk

Darren Filson and Saman Olfati

Journal of Banking & Finance, 2014, vol. 41, issue C, 209-221

Abstract: Combined abnormal returns from U.S. bank holding company acquisitions during 2001–2011 suggest that diversification into investment banking, securities brokerage and insurance under the Gramm–Leach–Bliley Act of 1999 creates value. Exceptional returns depend on contributing factors; the most robust are that the acquirer is large and has experienced negative returns over the prior year (characteristics consistent with models of optimal diversification). Results are inconclusive on whether the impact of acquirer size is a too-big-to-fail effect, but acquirer characteristics are associated with adverse consequences: large size is associated with increasing systematic risk, and falling acquirer values are associated with increasing idiosyncratic risk.

Keywords: Financial Services Modernization Act; Bank mergers; Bank diversification; Financial conglomerates; Event studies (search for similar items in EconPapers)
JEL-codes: G01 G14 G21 G28 L25 (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (13)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:jbfina:v:41:y:2014:i:c:p:209-221

DOI: 10.1016/j.jbankfin.2014.01.019

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