About 88 percent of Fortune 500 companies that existed in the 1950s are no longer around today. Many of those companies either merged or were acquired, but you can’t ignore the fact that many of these companies simply made bad business decisions. And if you take an even closer look, you’ll discover a common denominator among the big companies that have failed throughout history: a lack of women in leadership positions.

Many of these big companies also failed to adapt to an ever-changing environment. Blockbuster Video, Borders Books, Kodak, Sears, Blackberry — what do they all have in common? They failed to realize that the world was becoming more innovative and technological — and when they finally did, it was already too late.