When Rohini Anand took over diversity programs at multinational catering company Sodexo in 2002, she had one goal: To prove that it pays for a company to have equal numbers of male and female managers. Sodexo, which has 419,000 employees in 80 countries, says she's done just that. A company-wide study last year found that units with equal numbers of men and women in management roles delivered more profits more consistently than those dominated by men. "It has become embedded now. It's not just me talking about it anymore," said Anand. Solid business Evidence is growing that gender equity is not just politically correct window-dressing, but good business. Yet while companies are trying to increase the number of women in executive positions, many are struggling because of a failure to adapt workplace conditions in a way that ensures qualified women do not drop off the corporate ladder. The case for companies to act is compelling.