Economics, Finance and Quantitative Analysis
This paper compares and contrasts financial strength ratings assigned by Value Line, Standard and Poor's, and Moody's. All of these rating agencies use modified ratings. When modifiers are considered, these agencies agree between 85 to 97 percent of the time. A model using stock market information as well as liquidity, leverage, activity and profitability ratios is presented. Cronbach's alpha, a measure of reliability, is calculated for each rating class, and the entire data set.
Central Business Review
Brotman, Billie Ann. "A Comparative Analysis Of ValueLine, Standard And Poor's, and Moody's Industrial Bond Ratings." Central Business Review 8.2 (1990): 17-20.