Regulatory Arbitrage Within the Firm

Nicola Cetorelli and Shohini Kundu ()
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Shohini Kundu: https://www.anderson.ucla.edu/faculty-and-research/finance/faculty/kundu

No 1196, Staff Reports from Federal Reserve Bank of New York

Abstract: Regulation shapes the boundaries of firms. When prudential standards bind asymmetrically across subsidiaries of an integrated organization, internal capital markets become a mechanism for regulatory arbitrage. We study this in U.S. banking, where holding companies encompass both heavily regulated depository institutions and lightly regulated nonbank affiliates. Following Basel III in 2015, holding companies extract equity from nonbank subsidiaries to recapitalize their banks. Bank subsidiaries accumulate 5-8 percentage points more excess capital than comparable standalone banks through internal transfers; consolidated equity, assets, and lending are unchanged. In response to the same regulatory shock, nonbank affiliates within these organizations exhibit declining capital ratios, deteriorating credit quality, and expansion into consumer lending. The consolidated organization remains exposed to nonbank distress. We calibrate stress scenarios to 2008-scale losses on nonbank assets. If parents were to recapitalize distressed subsidiaries, 4-6 percent of holding companies would exhaust their capital buffers. For the most exposed institutions, the apparent improvement in bank safety is substantially overstated once the implicit liability to nonbank affiliates is accounted for. Organizational structure is a fundamental determinant of regulatory outcomes.

Keywords: banks; nonbanks; bank holding companies (BHCs); regulation; arbitrage; boundary of the firm (search for similar items in EconPapers)
JEL-codes: G21 G23 G28 G38 (search for similar items in EconPapers)
Pages: 108
Date: 2026-05-01
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DOI: 10.59576/sr.1096

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