Aircraft mechanic Jere Herr of Indianapolis prepares to go to work while seated in his recreational vehicle, parked in a lot at the Los Angeles International Airport. He lives by the airport to save money for the future. One-third of Americans will have to rely on Social Security benefits — not pensions — in their retirement years. Kevork Djansezian/Getty Images hide caption

itoggle caption Kevork Djansezian/Getty Images

At MIT's Sloan School of Management, students participate in a simulated stock market last July. Investing in stocks when prices are cheap can lead to long-term gains that ultimately bolster one's nest egg. It's a premise many young people understand, but the turmoil of the Great Recession kept some on the sidelines. Brian Snyder/Reuters/Corbis hide caption

itoggle caption Brian Snyder/Reuters/Corbis

Retired members of the United Auto Workers (UAW) listen to details of their retirement accounts while they attend a monthly benefits meeting in Detroit in 2008. Investment experts say people make the mistake of not adjusting the balance of stocks and bonds in their portfolios after making their initial investment. Spencer Platt/Getty Images hide caption

itoggle caption Spencer Platt/Getty Images

A nurse tends to a patient at the University of Maryland Medical Center in Baltimore. The Bureau of Labor Statistics says nursing is the occupation that will provide the most new jobs over the next decade. Rob Carr/AP hide caption

itoggle caption Rob Carr/AP

Some high-level policymakers say large firms, such as Bank of America, pose too much danger to the financial system and to taxpayers. Davis Turner/Getty Images hide caption

itoggle caption Davis Turner/Getty Images

An employee of an Indonesian money exchange counts currency in Jakarta. Bay Ismoyo/AFP/Getty Images hide caption

itoggle caption Bay Ismoyo/AFP/Getty Images