Even among Harvard MBAs, few black women ever reach corporate America’s top rungs

In recent months, Corporate America’s corner office has actually gotten a little less diverse — not more — when it comes to the number of African-Americans. With American Express chief executive Kenneth Chenault stepping down, there are just three black CEOs in the Fortune 500. And with the departure of former CEO Ursula Burns from Xerox, announced in 2016, there are no black female CEOs leading companies in the S&P 500 index.

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