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Do Strict Capital Requirements Raise the Cost of Capital? Bank Regulation, Capital Structure, and the Low-Risk Anomaly

Author

Listed:
  • Malcolm Baker
  • Jeffrey Wurgler

Abstract

Traditional capital structure theory predicts that reducing banks' leverage reduces the risk and cost of equity but does not change the weighted average cost of capital, and thus the rates for borrowers. We confirm that the equity of better-capitalized banks has lower beta and idiosyncratic risk. However, over the last 40 years, lower risk banks have not had lower costs of equity (lower stock returns), consistent with a stock market anomaly previously documented in other samples. A calibration suggests that a binding ten percentage point increase in Tier 1 capital to risk-weighted assets could double banks' risk premia over Treasury bills.

Suggested Citation

  • Malcolm Baker & Jeffrey Wurgler, 2015. "Do Strict Capital Requirements Raise the Cost of Capital? Bank Regulation, Capital Structure, and the Low-Risk Anomaly," American Economic Review, American Economic Association, vol. 105(5), pages 315-320, May.
    • Handle: RePEc:aea:aecrev:v:105:y:2015:i:5:p:315-20
    Note: DOI: 10.1257/aer.p20151092
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    References listed on IDEAS

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    More about this item

    JEL classification:

    • D92 - Microeconomics - - Micro-Based Behavioral Economics - - - Intertemporal Firm Choice, Investment, Capacity, and Financing
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
    • G31 - Financial Economics - - Corporate Finance and Governance - - - Capital Budgeting; Fixed Investment and Inventory Studies
    • L51 - Industrial Organization - - Regulation and Industrial Policy - - - Economics of Regulation

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