An article published Friday in The Economist discusses the decline of the marriage rate of the black population and its implications for black women. As the below chart from the article indicates, the percentage of black adults married had decreased more rapidly than that of the white and Hispanic populations since 1970; as of 2010, the rate is down to about 40%. The article quotes Stanford professor and author of "Is Marriage for White People? How the African-American Marriage Decline Affects Everyone," who believes that a "man shortage" is at the heart of the issue. According to the article, roughly one in ten black men in their early thirties are incarcerated and black men have "fallen behind in education and income" relative to black women, with two black women graduating from college for every black man. As the group that "least intermarries with other races," black women are left with limited marital options and consequently, seven out ten are single.