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? Address Thank you! Oops! Related Contents Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns. The Business Cycle Understanding the economy's cycles can help put current business conditions in better perspective. 5 Smart Investing Strategies Getting what you want out of your money may require the right game plan.