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Bank capital requirement shocks: A narrative perspective

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  • Conti, Antonio M.
  • Nobili, Andrea
  • Signoretti, Federico M.

Abstract

We provide new estimates of the impact of shocks to bank capital requirements on lending supply and macroeconomic activity based on a Bayesian VAR estimated on Italian data and identified combining sign and narrative restrictions. Narrative restrictions are based on the EBA 2011 Stress Test (ST) and the ECB 2014 Comprehensive Assessment (CA) and are corroborated by evidence from the Euro Area Bank Lending Survey. IRFs show that shocks to required capital persistently reduce R.W.A. and loan supply and lead to a temporary decline in GDP. Based on historical decomposition, the ST and the CA increased banks’ Tier 1 ratio by 40 bps and determined a contraction in loan supply and GDP after two years of up to 1.5% and 0.5%, respectively. Results are robust to using alternative narrative restrictions and hold also when controlling for market pressure during the sovereign debt crisis and for global shocks to bank capitalization.

Suggested Citation

  • Conti, Antonio M. & Nobili, Andrea & Signoretti, Federico M., 2023. "Bank capital requirement shocks: A narrative perspective," European Economic Review, Elsevier, vol. 151(C).
    • Handle: RePEc:eee:eecrev:v:151:y:2023:i:c:s0014292122001507
    DOI: 10.1016/j.euroecorev.2022.104254
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    More about this item

    Keywords

    Bank capital requirements; Banking supervision; Bayesian VAR models; Narrative restrictions;
    All these keywords.

    JEL classification:

    • C11 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Bayesian Analysis: General
    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models
    • C45 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics - - - Neural Networks and Related Topics
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • F34 - International Economics - - International Finance - - - International Lending and Debt Problems
    • G38 - Financial Economics - - Corporate Finance and Governance - - - Government Policy and Regulation

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