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All Journal Buletin Ekonomi Moneter dan Perbankan
Maulana Harris Muhajir
Bank Indonesia, Department of Macroprudential Policy

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ESTIMATING A JOINT PROBABILITY OF DEFAULT INDEX FOR INDONESIAN BANKS: A COPULA APPROACH Zaafri Ananto Husodo; Sigit Sulistyo Wibowo; Muhammad Budi Prasetyo; Usman Arief; Maulana Harris Muhajir
Buletin Ekonomi Moneter dan Perbankan Vol 23 No 3 (2020)
Publisher : Bank Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21098/bemp.v23i3.1358

Abstract

We develop a joint default probability index to signal potential systemic risks in the highly concentrated Indonesian banking industry. To build the index, we estimate bank-level tail risks using monthly bank financial reports. We use the copula approach to derive the joint multivariate dependencies at the bank level, as reflected in the monthly financial reports. Our results, which are based on a sample of 104 banks fromDecember 2003 to April 2020, show joint multivariate dependencies at the bank level suggesting that the standard univariate normal distribution is unsuitable for capturing tail risks of individual banks. Our index accurately captures the global financial crisis of 2007-2008 indicating that it is a valid joint default probability index. Further, our index also signaled a higher degree of joint default before the COVID-19 outbreak in2020, suggesting that it is a good indicator of potential systemic risk in the economy.
Co-Authors Husodo, Zaafri Ananto Muhammad Budi Prasetyo Sigit Sulistyo Wibowo Usman Arief