Marriage rates are at historic lows. According to the Pew Research Center’s analysis of 2010 Census data, while in 1960 nearly three out of four of all adults were married, today just half are. Why are Americans delaying or even shunning the institution? What could this decline mean for their economic futures? Does marriage still matter? University of Maryland sociologist Philip Cohen explains what factors, from gender equality to educational attainment, have played a role in the decline of marriage rates.