This week closes out a most volatile quarter. Stocks are on track to rise by the most during the quarter (+19% as of this writing) since 2009 despite a sharp contraction in the economy. The powerful rally leaves many wondering about valuations amid a pandemic and recession. Even though price is important, we should avoid relying too heavily on standard valuation metrics such as price-to-earnings multiples because this economy is far too volatile to assess business prospects accurately and because stock values are determined mostly by long-run, rather than short-run, earnings power. Price is Important Overpaying for stocks can take…