Banking systemic vulnerabilities: A tail-risk dynamic CIMDO approach |
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Institution: | 1. Department of Business, Universidad Carlos III de Madrid, Getafe 28903, Spain;2. Department of Economic Analysis and Finance, Universidad de Castilla La Mancha, Toledo 45071, Spain;1. School of Business and Economics, Maastricht University, The Netherlands;2. Birmingham Business School, University of Birmingham, UK |
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Abstract: | This study proposes a novel framework which combines marginal probabilities of default estimated from a structural credit risk model with the consistent information multivariate density optimization (CIMDO) methodology and the generalized dynamic factor model (GDFM) supplemented by a dynamic t-copula. The framework models banks’ default dependence explicitly and captures the time-varying non-linearities and feedback effects typical of financial markets. It measures banking systemic credit risk in the three forms categorized by the European Central Bank: (1) credit risk common to all banks; (2) credit risk in the banking system conditional on distress on a specific bank or combinations of banks; and (3) the buildup of banking system vulnerabilities over time which may unravel disorderly. In addition, the estimates of the common components of the banking sector short-term and conditional forward default measures contain early warning features, and the identification of their drivers is useful for macroprudential policy. Finally, the framework produces robust out-of-sample forecasts of the banking systemic credit risk measures. This paper advances the agenda of making macroprudential policy operational. |
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Keywords: | Financial stability Procyclicality Macroprudential policy Credit risk Early warning indicators Default probability Non-linearities Generalized dynamic factor model Dynamic copulas GARCH |
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