The Business Cycle How will you weather the ups and downs of the business cycle? Share | Related Content The Rule of 72 Do you know how long it may take for your investments to double in value? The Rule of 72 is a quick way to figure it out. The Utility of Sector Investing Successful sector investing is dependent upon an accurate analysis about when to rotate in and out. What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock.