Summary of the findings from Planet Money:
"1. Over the long term, the top 1 percent have seen much larger gains than everyone else.
2. During the recession, the incomes of the top 1 percent fell more sharply than the incomes of everyone else. This happened because the stock market crashed, and the highest earners get a big chunk of income from investments.
3. In 2009-2010, when the market came back, incomes of the top 1 percent bounced back, while incomes for everyone else remained flat."