A. Explain the graph below using risk structure theory of interest rate. Corporate Bond Yields Typically Rise During Times of Economic Stress Compared to U.S. Treasury Bonds (Risk Free) Difference in Percentage Points (Corporate Bond Yield less U.S. Treasury Bond Yield) Low-Grade Corporate Bond Risk Premium homwa Russian Ruble Crisis (1998) gh-Grade Corporate Bond Risk Premium 2001 Recession Apr-95 Apr-96 Apr-98 Apr-99 Apr-00 Apr-01 Apr-02 Apr-03 Apr-04 Source: Moody's, Merrill Lynch, Federal Reserve Board