Sallie Krawcheck, formerly the CFO of Citi Group and the CEO of Merrill Lynch, talks with Recode's Kara Swisher about launching Ellevest, a new online investment platform for women. Krawcheck says the male-dominated world of finance overlooks the needs of female customers, and that women invest differently. She also discusses the 20-20 hindsight of the 2008 financial crisis, the danger of another downturn and why being an entrepreneur is "harder than running Merrill Lynch."

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