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A q-theory of banks

Author

Listed:
  • Begenau, Juliane
  • Bigio, Saki
  • Vieyra, Matias
  • Majerovitz, Jeremy

Abstract

We propose a dynamic bank theory with a delayed loss recognition mechanism and a regulatory capital constraint at its core. The estimated model matches four facts about banks' Tobin's Q that summarize bank leverage dynamics. (1) Book and market equity values diverge, especially during crises; (2) Tobin's Q predicts future bank profitability; (3) neither book nor market leverage constraints are binding for most banks; (4) bank leverage and Tobin's Q are mean reverting but highly persistent. We examine a counterfactual experiment where different accounting rules produce a novel policy tradeoff.

Suggested Citation

  • Begenau, Juliane & Bigio, Saki & Vieyra, Matias & Majerovitz, Jeremy, 2021. "A q-theory of banks," CEPR Discussion Papers 16670, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:16670
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    More about this item

    Keywords

    Banks; Leverage dynamics; Market vs. book values; Delayed accounting;
    All these keywords.

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill
    • G33 - Financial Economics - - Corporate Finance and Governance - - - Bankruptcy; Liquidation
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy

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