Womenomics

Early this past spring, the White House Council on Women and Girls released a much-anticipated report called Women in America. One of its conclusions struck a familiar note: today, as President Obama said in describing the document, “women still earn on average only about 75 cents for every dollar a man earns. That’s a huge discrepancy.”

And it’s the same discrepancy existing ever since women started earning money – it’s well documented through 16th, 17th centuries and beyond.

The facts are that women work fewer hours, choose less demanding jobs, and then earn less than men do? The reason for this is obvious: kids. A number of researchers have found that if you consider only childless women, the wage gap disappears. June O’Neill, an economist who has probably studied wage gaps as much as anyone alive, has found that single, childless women make about 8 percent more than single, childless men do (though the advantage vanishes when you factor in education). Using Census Bureau data of pay levels in 147 of the nation’s 150 largest cities, the research firm Reach Advisors recently showed that single, childless working women under 30 earned 8 percent more than their male counterparts did.

The most compelling research into the impact of children on women’s careers and earnings—one that also casts light on why women are a rarity at the highest levels of the corporate and financial world—comes from a 2010 article in the American Economic Journal by Marianne Bertrand of the University of Chicago and Claudia Goldin and Lawrence Katz of Harvard. The authors selected nearly 2,500 MBAs who graduated between 1990 and 2006 from the University of Chicago’s Booth School of Business and followed them as they made their way through the early stages of their careers. If there were discrimination to be found here, Goldin would be your woman. She is co-author of a renowned 2000 study showing that blind auditions significantly increased the likelihood that an orchestra would hire female musicians.

Here’s what the authors found: right after graduation, men and women had nearly identical earnings and working hours. Over the next ten years, however, women fell way behind. Survey questions revealed three reasons for this. First and least important, men had taken more finance courses and received better grades in those courses, while women had taken more marketing classes. Second, women had more career interruptions. Third and most important, mothers worked fewer hours. In other words, these female MBAs bought tickets for what is commonly called the “mommy track.”

In fact, women choose fewer hours—despite the resulting gap in earnings—all over the world. That includes countries with generous family leave and child-care policies. Look at Iceland, recently crowned the world’s most egalitarian nation by the World Economic Forum. The country boasts a female prime minister, a law requiring that the boards of midsize and larger businesses be at least 40 percent female, excellent public child care, and a family leave policy that would make NOW members swoon. Yet despite successful efforts to get men to take paternity leave, Icelandic women still take considerably more time off than men do. They also are far more likely to work part-time. According to the Organisation for Economic Co-operation and Development (OECD), this queen of women-friendly countries has a bigger wage gap—women make 62 percent of what men do—than the United States does.

That doesn’t mean that the mommy track doesn’t present a problem, particularly in a culture in which close to half of all marriages break down. A woman can have a baby, decide to reduce her hours and her pay, forgo a pension, and then, ten years later, watch her husband run off with the Pilates instructor. The problem isn’t what it used to be when women had fewer degrees and less work experience during their childless years; women today are in better shape to jump-start their careers if need be. The risk remains, however.

In summary the risk to women’s earnings is what we intuitively know: kids! And in a situation where marriage breaks down that earnings gap is further exacerbated.