Using a novel data set containing all bids by all bidders for Mexican government bonds from 2001 to 2017, we demonstrate that asymmetric information about default risk is a key determinant of primary market bond yields. Empirically, large bidders do not pay more for bonds than the average bidder...

For decades credit rating agencies were viewed as trusted arbiters of creditworthiness and their ratings as important tools for managing risk. The common narrative is that the value of ratings was compromised by the evolution of the industry to a form where issuers pay for ratings. In this paper...