David Kestenbaum's signature David Kestenbaum/NPRhide caption
itoggle caption David Kestenbaum/NPRDavid Kestenbaum's signature
David Kestenbaum/NPRSome people write a squiggle. Others just write an initial. One person draws a dude surfing.
Today on the show: the signature. It's supposed to say, "This is me." But where did the idea come from? And why are we still using it? We consult a rabbi, a lawyer and a credit card executive.
Music: Lightnin' Slim's "The Things I Used To Do." Find us: Twitter/ Facebook/ Spotify/ Tumblr. Download the Planet Money iPhone App.