Bursting the Bubble Tulips were the first, but they won’t be the last. What forms a “bubble” and what causes them to burst? Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits. Taxable vs. Tax-Deferred Savings Use this calculator to compare the future value of investments with different tax consequences. The Utility of Sector Investing Successful sector investing is dependent upon an accurate analysis about when to rotate in and out.