Uses and abuses of credit ratings in structured finance

Author(s):  
Natalia Besedovsky

This chapter studies calculative risk-assessment practices in credit rating agencies. It identifies two fundamentally different methodological approaches for producing ratings, which in turn shape the respective conceptions of credit risk. The traditional approach sees ‘risk’ as an only partially calculable and predictable set of hazards that should be avoided or minimized. This approach is particularly evident in the production of country credit ratings and gives rise to ordinal rankings of risk. By contrast, structured finance rating practices conceive of ‘risk’ as both fully calculable and controllable; they construct cardinal measures of risk by assuming that ontological uncertainty does not exist and that models can capture all possible events in a probabilistic manner. This assumption—that uncertainty can be turned into measurable risk—is a necessary precondition for structured finance securities and has become an influential imaginary in financial markets.


2020 ◽  
Vol 41 ◽  
pp. 100816 ◽  
Author(s):  
Jens Josephson ◽  
Joel Shapiro

2009 ◽  
Vol 99 (3) ◽  
pp. 628-666 ◽  
Author(s):  
Joshua D Coval ◽  
Jakub W Jurek ◽  
Erik Stafford

The central insight of asset pricing is that a security's value depends both on its distribution of payoffs across economic states and on state prices. In fixed income markets, many investors focus exclusively on estimates of expected payoffs, such as credit ratings, without considering the state of the economy in which default occurs. Such investors are likely to be attracted to securities whose payoffs resemble economic catastrophe bonds—bonds that default only under severe economic conditions. We show that many structured finance instruments can be characterized as economic catastrophe bonds, but offer far less compensation than alternatives with comparable payoff profiles. (JEL G11, G12)


Author(s):  
Hela Cheikhrouhou ◽  
Emanuel Salinas ◽  
Sophie Sirtaine ◽  
Dimitri Vittas ◽  
W. Britt Gwinner ◽  
...  

CFA Digest ◽  
2004 ◽  
Vol 34 (4) ◽  
pp. 29-31
Author(s):  
Bruce D. Phelps
Keyword(s):  

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