Da che dipende il rischio delle banche? Il beta fondamentale delle banche europee (What does banks' riskiness depend on? The fundamental beta of Europe's banks)

Autori

DOI:

https://doi.org/10.13133/2037-3651_72.286_3

Parole chiave:

systemic risk, fundamental beta, European banks

Abstract

Da quali fattori dipende il rischio delle banche europee? Il tema è di grande rilevanza e attualità, sia per i regolatori/vigilanti che per gli operatori dei mercati finanziari. Questo studio, seguendo l’approccio di Beaver-Kettler-Scholes (1970), stima empiricamente il beta fondamentale di oltre 100 banche commerciali europee nel periodo 2006-2015. L’evidenza empirica che emerge dimostra che la dimensione, la diversificazione, l’incidenza dei derivati e il TEXAS ratio aumentano il rischio sistematico delle banche, e che il sistema di ponderazione dei rischi degli attivi bancari, basato sulle regole di Basilea, non sembra in grado di cogliere i fattori di rischio bancario, risultando dallo studio un suo impatto negativo sul beta. Riteniamo che questa evidenza indebolisca il punto di vista dominante che vede nelle fusioni/acquisizioni la panacea per le banche europee.

Which factors determine the systematic risk of European banks? The issue is very crucial for regulators and decision-makers in financial markets. This study follows the Beaver-Kettler-Scholes (1970)’s approach and empirically estimates the fundamental beta of a sample of more than 100 European commercial banks in 2006-2015 period. The emerging findings show that size, diversification, derivatives, and TEXAS ratio increase the systematic risk of banks and that the risk weighting of assets, based on the Basel rules, seems to not correctly catch the bank risks, influencing negatively their beta. We believe this evidence weakens the dominant belief that M&As are the panacea for the European banks.

Jel Codes: G21, G28

Biografia autore

Daniela Venanzi, Università Roma Tre - Dipartimento Economia

Professore ordinario di Finanza aziendale

Riferimenti bibliografici

Alessandrini P., Papi L. e Zazzaro A. (2003), “Banche, territorio e sviluppo”, Moneta e Credito, 56 (221), pp. 3-42.

Ang J.S., Chua J.H. e McConnell J.J. (1982), “The Administrative Costs of Corporate Bankcruptcy: A Note”, The Journal of Finance, 37, pp. 219-226.

Angelini P. (2016), “Le modifiche del quadro regolamentare e le sfide per le banche italiane”, Convegno ABI “Unione Bancaria e Basilea 3 – Risk and Supervision”, Roma, 21 giugno.

Arellano M. (2003), Panel Data Econometrics, Oxford: Oxford University Press.

Baele L., De Jonghe O. e Vennet R.V. (2007), “Does the Stock Market Value Bank Diversification?”, Journal of Banking & Finance, 31 (7), pp. 1999-2023.

Bhagat S., Bolton B. e Lu J. (2015), “Size, Leverage, and Risk-Taking of Financial Institutions”, Journal of Banking and Finance, 59, pp. 520-537.

Barbaresco G. (2015), “Zibaldone su banche, Stato e regolamentazione” – Relazione Convegno ABI “La ristrutturazione delle banche e dei sistemi finanziari nell’area Euro”, Roma, 28 gennaio.

Baselga-Pascual L., Trujillo-Ponce A. e Cardone-Riportella C. (2015), “Factors Influencing Bank Risk in Europe: Evidence from the Financial Crisis”, North American Journal of Economics and Finance, 34, pp. 138-166.

BCBS – Basel Committee on Banking Supervision (2014), Basel III Leverage Ratio Framework and Disclosure Requirements, Basilea: Bank for International Settlements, disponibile alla URL: https://www.bis.org/publ/bcbs270.pdf

Beaver W.H., Kettler P. e Scholes M. (1970), “The Association Between Market Determined and Accounting Determined Risk Measures”, The Accounting Review, 45 (4), 654-682.

Behn M., Haselmann R. e Vig V. (2016), “The Limits of Model-Based Regulation”, ECB Working Paper Series, n.1928, Frankfurt a.M.: European Central Bank.

Ben Jabra W., MighriZ. e Mansouri F. (2017), “Determinants of European Bank Risk during Financial Crisis”, Cogent Economics & Finance, 5, pp. 2-20.

Bharati R., Gupta M. e Nanisetty P. (1998), “Are Dividends Smoothed Signals of Earnings Asymmetry? An Empirical Investigation”, International Journal of Business, 3 (2), pp. 1-18.

Bildersee J.S. (1975), “The Association between a Market-Determined Measure of Risk and Alternative Measures of Risk”, The Accounting Review, 50 (1), pp. 81-98.

Black F., Jensen M.C. e Scholes M. (1972), “The Capital Asset Pricing Model: Some Empirical Tests”, in M.C. Jensen (a cura di), Studies in the Theory of Capital Markets, New York: Praeger.

Cannata F., Casellina S. e Guidi G. (2012) “Inside the Labyrinth of Basel Risk-Weighted Assets: How Not to Get Lost”, Questioni di Economia e Finanza (Occasional Papers), n. 132, Roma: Banca d’Italia.

Damodaran A. (1999), “Estimating Risk Parameters”, NYU Stern School of Business, disponibile alla URL: http://people.stern.nyu.edu/adamodar/pdfiles/papers/beta.pdf

Damodaran A. (2009), “Valuing Financial Service Firms”, NYU Stern School of Business, disponibile alla URL: http://people.stern.nyu.edu/adamodar/pdfiles/papers/finfirm09.pdf

Demirguc-Kunt A. e Huizinga H. (2010), “Bank Activity and Funding Strategies: The Impact on Risk and Returns”, Journal of Financial Economics, 98, pp. 626-650.

Demirguc-Kunt A., Detragiache E. e Merrouche O. (2013), “Bank Capital: Lessons from the Financial Crisis”, Journal of Money, Credit and Banking, 45 (6), pp. 1147-1164.

DeYoung R. e Roland K.P. (2001), “Product Mix and Earnings Volatility at Commercial Banks: Evidence from a Degree of Total Leverage Model”, Journal of Financial Intermediation, 10(1), pp. 54-84.

ECB – European Central Bank (2018), Supervisory Banking Statistics, third quarter, disponibile alla URL: https://www.bankingsupervision.europa.eu/ecb/pub/pdf/ssm.supervisorybankingstatistics_third_quarter_2017_201801.en.pdf

ECB – European Central Bank (2019), Supervisory Banking Statistics, fourth quarter, , disponibile alla URL: https://www.bankingsupervision.europa.eu/ecb/pub/pdf/ssm.supervisorybankingstatistics_fourth_quarter_2018_201904~4b71b5db1c.en.pdf

Eskew R.K. (1979), “The Forecasting Ability of Accounting Risk Measures: Some Additional Evidence”, The Accounting Review, 54 (1), pp. 107-118.

Fama E.F. e Babiak H. (1968), “Dividend Policy: An Empirical Analysis”, Journal of the American Statistical Association, 63 (324), pp. 1132-1161.

Fama E.F. e French K.R. (1992), “The Cross-Section of Expected Stock Returns”, The Journal of Finance, 47 (3), pp. 427-465.

Fama E.F. e French K.R. (1993), “Common Risk Factors in the Returns on Stocks and Bonds”, Journal of Financial Economics, 33 (1), pp. 3-56.

Fama E.F. e MacBeth J.D. (1973), “Risk, Return and Equilibrium: Empirical Tests”, Journal of Political Economy, 81 (3), pp. 607-636.

Gu Z. e Kim H. (1998), “Casino Firms' Risk Features and Their Beta Determinants”, Progress in Tourism and Hospitality Research, 4 (4), pp. 357-365.

Haq M. e Heaney R. (2012), “Factors Determining European Bank Risk”, Journal of International Financial Markets, Institutions and Money, 22 (4), pp. 696-718.

Jarvela M., Kozyra J. e Potter C. (2009), “The Relationship between Market and Accounting Determined Risk Measures: Reviewing and Updating the Beaver, Kettler, Scholes (1970) Study”, College Teaching Methods & Styles Journal, 5 (1), pp.1-10.

Leung W.S., Taylor N. e Evans K.P. (2015), “The Determinants of Bank Risks: Evidence from the Recent Financial Crisis”, Journal of International Financial Markets, Institutions and Money, 34 (1), pp. 277-293.

Lintner J. (1956), “Distribution of Incomes of Corporations Among Dividends, Retained Earnings, and Taxes”, The American Economic Review, 46 (2), pp. 97-113.

Lintner J. (1965), “Security Prices, Risk, and the Maximal Risk from Diversification”, The Journal of Finance, 20 (4), pp. 587-615.

Mediobanca-R&S (2014), Dati cumulativi delle principali banche internazionali, www.mbres.it, disponibile alla URL: http://www.ricerchestudi.it/sites/default/files/resources/download_it/rs_Banche14.pdf

Modigliani F. e Miller M.H. (1958), “The Cost of Capital, Corporation Finance, and the Theory of Investment”, The American Economic Review, 48 (3), pp. 261-297.

Roll R. (1977), “A Critique of the Asset’s Pricing Theory’s Tests: Part I”, Journal of Financial Economics, 4 (2), pp. 129-176.

Shan Y., Taylor S.L., Walter T.S. (2013), “Fundamentals or Managerial Discretion? The Relationship between Accrual Variability and Future Stock Return Volatility”, Abacus, 49 (4), pp. 441-475.

Sharpe W.F. (1964), “Capital Asset Prices: A Theory of Market Equilibrium under Conditions of Risk”, The Journal of Finance, 19 (3), pp. 425–442.

Stever R. (2007), “Bank Size, Credit and the Sources of Bank Market Risk”, BIS Working Papers, n. 238, Basilea: Bank of International Settlements.

Stiroh K.J. (2004), “Diversification in Banking: is Noninterest Income the Answer?”, Journal of Money, Credit and Banking 36 (5), pp. 853-882.

Stiroh K.J. (2006), “A Portfolio View of Banking with Interest and Noninterest Activities”, Journal of Money Credit and Banking, 38 (5), pp. 1351-1361.

Stiroh K.J., Rumble A. (2006), “The Dark Side of Diversification: The Case of U.S. Financial Holding Companies”, Journal of Banking & Finance, 30 (8), pp. 2131-2161.

Titman S. e Wessels R. (1988), “The Determinants of Capital Structure Choice”, The Journal of Finance, 43 (1), pp. 1-19.

Walter I. (2004) “Conflicts of Interest and Market Discipline among Financial Service Firms”, European Management Journal, 22 (4), pp. 361-376.

Warner J.B. (1977), “Bankruptcy Costs: Some Evidence”, The Journal of Finance, 32 (2), pp. 337-347.

Venanzi D. (2016), “Banche: fusioni e worst practices nella valutazione”, Economia e politica–Rivista on line, 8 (12)

Venanzi D. (2017), ““Banche italiane: che sofferenze!”, Economia e politica–Rivista on line, 9(14)

Venanzi D. (2018), “Banche e falsi miti”, Critica Marxista, 2, pp. 17-28.

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Pubblicato

2019-08-02

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