Are Alternative Investments Right for You? With alternative investments, it’s critical to sort through the complexity. 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 Ivory Tower Changes Wall Street Thanks to the work of three economists, we have a better understanding of what determines an asset’s price. Keys to Investing for Retirement There are some key concepts to understand when investing for retirement.