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. Share | Related Content Bursting the Bubble Tulips were the first, but they won’t be the last. What forms a “bubble” and what causes them to burst? Inflation & Your Money It's important to understand how inflation is reported and how it can affect investments. 5 Smart Investing Strategies Getting what you want out of your money may require the right game plan.