The growth of securitisation has added a new class of securities to the financial markets. Rating these securities involves evaluating complex risks which are not inherent in conventional market instruments like bonds. This article decomposes the collateral and structural risks involved in...

Since 2011, Morningstar has issued Morningstar Analyst Ratings on many of the largest mutual funds in the United States. In June 2017, Morningstar launched the Morningstar Quantitative Rating™ to provide a forward‐looking rating on all mutual funds. Morningstar uses a “robo‐rater”...

We analyse whether soliciting multiple ratings leads to lower syndicated loan spreads. Our results document that banks apply, on average, lower spreads to multi-rated firms. This effect depends on the reduction of information asymmetry about borrowers' creditworthiness (information production...

A rater is paid by a seller, observes a signal about the seller's product, and issues a public cheap-talk rating for potential buyers. I characterize the partition of the rater's information into ratings issued following public payments from the seller to the rater, and ratings issued when the...

I develop a model in which a duopoly of credit rating agencies endogenously use issuers as messengers to find out each other's assessments before offering ratings. Information flows between rating agencies when (i) rating agencies' incentives are aligned due to both of their ratings being...

Building on the idea that precision of credit ratings matters for the efficiency of investors' portfolio decisions, the paper analyzes the equilibrium precision of ratings. Our analysis explains why ratings are noisy, exhibit rating inflation and vary across asset classes and over the economic...

Since 2011, Morningstar has issued Morningstar Analyst Ratings on many of the largest mutual funds in the United States. In June 2017, Morningstar launched the Morningstar Quantitative Rating™ to provide a forward‐looking rating on all mutual funds. Morningstar uses a “robo‐rater”...