"This paper examines the causes of the observed increase in the average duration of unemployment over the past thirty years. First we analyze whether changes in the demographic composition of the U.S. labor force, particularly the age and gender composition, can explain this increase. We then...

This paper is the first to document the presence of a private premium in public bonds. We find that spreads are 31 basis points higher for public bonds of private companies than for bonds of public companies, even after controlling for observable differences, including rating, financial...

Remarks at the ACI 2010 World Congress, Sydney, Australia.

Many theoretical bond pricing models predict that the slope of the credit yield curve facing highly leveraged firms is negative. Previous empirical research by Sarig and Warga (1989) and Fons (1994) confirms this view of high yield bonds. We show that these results largely owe to sample...

This paper tests whether the tendency of third rating agencies to assign higher ratings than Moody's and Standard & Poor's results from more lenient standards or sample selection bias. More lenient standards might result from incentives to satisfy issuers who are, in fact, the purchasers of the...