A metric used to evaluate the relationship between bond yields and earnings yields in the stock market. The Bond Equity Earnings Yield Ratio (BEER) has two parts – the top is represented by a benchmark bond yield (such as five- or 10-year Treasuries) while the bottom is the current earnings yield of a stock benchmark (such as the S&P 500).   



|||A BEER of 1 would indicate equal levels of perceived risk in the bond market and the stock market. Analysts often feel that BEER ratios greater than 1 imply that equity markets are undervalued, while numbers less than 1 mean they are overvalued, or that prevailing bond yields are not adequately pricing risk. 

Consider the example of a BEER made up of a 10-year Treasury with a current yield of 4.5% and an S&P 500 earnings yield of 5% (P/E of 20). The ratio created would resemble the following:

Bond Yield (4.5) / Earnings Yield (5) = 0.9 

The earnings yield of the stock market (or simply an individual stock) is just the inverse of the P/E ratio.