While operational risk is generally perceived as idiosyncratic with limited systemic implications, we document that operational risk significantly threatens financial stability. Using supervisory data on large U.S. bank holding companies (BHCs) over 2002:Q1-2016:Q4, we find operational losses...

How does business complexity affect risk management in financial institutions? The commonly used risk measures rely on either balance-sheet or market-based information, both of which may suffer from identification problems when it comes to answering this question. Balance-sheet measures, such as...

Banks play a special role as providers of informative signals about the quality and value of their borrowers. Such signals, however, may have a quality of their own as the banks' selection and monitoring abilities may differ. Using an event study methodology, we study the importance of the...

The impact of U.S. bank loan announcements on the stock prices of the corporate borrowers has been decreasing during the two last decades with estimated two-day cumulative abnormal returns slipping from almost 200 basis points in the beginning of the 1980s to close to zero by the turn of the...

This study examines the impact of credit rating upgrades and downgrades on six comprehensive banks' asset classes, profitability, leverage and size using data from the Federal Deposit Insurance Corporation's call reports and Bloomberg over the period 1989-2008. In summary, the results suggest...

Recent regulatory proposals tie a financial institution's systemic importance to its complexity. However, little is known about how complexity affects banks' risk management. Using the 1996-1999 deregulations of U.S. banks' nonbanking activities as a natural experiment, we show that banks'...

Using supervisory operational loss data of the U.S. banking industry, we analyze correlations among operational losses within banks and across banks. We find evidence of relatively high correlations among tail losses of different operational risk types within banks. The median of these...

This study documents the association between the quality of risk management practices and operational loss realizations at large financial institutions in the United States. Using detailed supervisory data, we find that companies with weak risk management practices experience higher and more...

Using supervisory data on operational losses from large U.S. bank holding companies (BHCs), we show that BHCs with socially responsible workforce policies suffer lower operational losses per dollar of total assets and incidence of tail risk events. The association is more pronounced for...

Using supervisory data from large U.S. bank holding companies (BHCs), we document that BHCs suffer more operational losses during episodes of extreme storms. Among different operational loss types, losses due to external fraud, BHCs' failure to meet obligations to clients and faulty business...