The accepted message on gender disparity in the workplace has for the past 10 to 15 years been one of acknowledgment and reassurance: Yes, women represent just 3% of Fortune 500 CEOs and less than 15% of corporate executives at top companies worldwide, but give it time. It’ll change. After all, women also make up 40% of the global workforce, with double-digit growth in certain countries. They’re earning advanced professional degrees in record numbers and in some areas surpassing men. Companies have implemented programs to fix structural biases against women and support their full participation in leadership. Women are finally poised to make it to the top, the argument goes. Not yet, but soon.

A version of this article appeared in the March 2010 issue of Harvard Business Review.