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 Question Thank you! Oops! Related Contents Global and International Funds Investors seeking world investments can choose between global and international funds. What's the difference? The Great Debate Continues: Active vs. Passive In investments, one great debate asks the question, “Active or Passive Investing: Which Is Better?” Keys to Investing for Retirement There are some key concepts to understand when investing for retirement.