Altman, Edward I. and Heather J. Suggitt, "Default Rates in the Syndicated Bank Loan Market: A mortality analysis", Journal of Banking & Finance, Vol. 24, No. 1-2. (January 2000), pp. 229-253.

Abstract: The most fundamental aspect of credit risk models is the rating of the underlying assets and the associated expected and unexpected migration patterns. The most important migration is to default. While default rate empirical studies of corporate bonds are now commonplace, there has never been a study on the default rate in the corporate bank loan market. This paper assesses, for the first time, the default rate experience on large, syndicated bank loans. The results are stratified by original loan rating using a mortality rate framework for the 1991-1996 period. We find that the mortality rates on bank loans are remarkably similar to that of corporate bonds when measured cumulatively over the five-year period after issuance, but loan default rates appear to be considerably higher than bonds for the first two years after issuance. Since loans have an average effective maturity of under two years, this shorter maturity difference is of considerable relevance, especially if confirmed when our database will cover a longer sample period and more actual defaults. We do attempt to estimate the impact and bias on our results of the study's sample period which only covers the recent benign credit cycle in the US. Our results provide important new information for assessing the risk of corporate loans not only for bankers but also mutual fund investors and analysts of structured financial products, credit derivatives and credit insurance.

JEL Classification: G33, G21, G3.

Keywords: Defaults, Bank loans, Mortality rates, Credit risk

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