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 Content Annuity Comparison This calculator compares a hypothetical fixed annuity with an account where the interest is taxed each year. When Special Care Is Needed: The Special Needs Trust A special needs trust helps care for a special needs child when you’re gone. To Buy or Not to Buy The decision whether to buy or rent a home may have long-term implications.