Edit this Published in Freakonomics Radio How Deep Is the Shadow Economy? Listen 19 min Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/233661/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend What we know -- and don't know -- about the gazillions of dollars that never show up on anyone's books.