The Power of Tax-Deferred Growth Why are 401(k) plans, annuities, and IRAs so popular? Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Contents Retirement Redefined Around the country, attitudes about retirement are shifting. When Should You Take Social Security Monthly Social Security payments differ substantially depending on when you start receiving benefits. Investment Strategies for Retirement Investment tools and strategies that can enable you to pursue your retirement goals.