At Issue:  Standard & Poor's Ratings of Mortgage Bonds Before the Financial Crisis  Jean Eaglesham, Jeannette Neumann, and Evan Perez report at the Wall Street Journal that S&P is under fire.  Here's more: ...

The Risk-Free Rate is the Cornerstone in Finance for Estimating both the Cost of Equity and Debt Capital. In corporate finance and valuation, both academics and practitioners have long used government security (U.S. Treasury Bills and Bond) rates as proxies for risk-free rate of return. How do credit downgrades affect the risk-free rate for private company valuators? Anthony Banks explains. ...