Women over 50 outperform in business. Why are they still overlooked?

When Meryl Rosenthal and her cofounder started a human capital and workplace transformation consultancy in 2005, she was 41 years old. Nine years later, her cofounder left for personal reasons, rendering Rosenthal—by then age 50—a so-called solopreneur.  Being a woman of that age and running a business on her own certainly came with challenges. One, she says, was that younger HR and business leaders tended to assume she didn’t have the necessary expertise because her background had not square...