Edit this Published in Freakonomics Radio The Economist’s Guide to Parenting Listen Queue Download this audio Want to embed this player? Use the code below. More info. <iframe width="600" height="130" frameborder="0" scrolling="no" src="//www.wnyc.org/widgets/ondemand_player/wnyc/#file=json/164246"></iframe> Share on Facebook Share on Twitter Email a Friend Think you know how much parents matter? Think again. Economists crunch the numbers to learn the ROI on child-rearing.