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...

In this paper, abrupt and large changes in volatility of financial variables representing dynamics of the US financial sector are modeled with a joint regime-switching process, distinguishing "low" and "high" volatility regimes. I find that the joint "high" volatility regime for the TED spread,...