Audrey belongs to the most unmarried group of people in the U.S.: black women. Nearly 70% of black women are unmarried, and the racial gap in marriage spans the socioeconomic spectrum, from the urban poor to well-off suburban professionals. Three in 10 college-educated black women haven't married by age 40; their white peers are less than half as likely to have remained unwed. 

What explains this marriage gap? As a black man, my interest in the issue is more than academic. I've looked at all the studies—the history, the social science, the government data—and I've spent a year traveling the country interviewing scores of professional black women. In exchange for my promise to conceal their identities (in part by using pseudonyms, as I've done here), they shared with me their most personal experiences and desires in relation to marriage and family. 

I came away convinced of two facts: Black women confront the worst relationship market of any group because of economic and cultural forces that are not of their own making; and they have needlessly worsened their situation by limiting themselves to black men. I also arrived at a startling conclusion: Black women can best promote black marriage by opening themselves to relationships with men of other races.