 The New Yorker Radio Hour is a co-production of WNYC Studios and The New Yorker. Our theme music was composed and performed by Meryl Garbus of Tune Yards with additional music by Louis Mitchell. The New Yorker Radio Hour is supported in part by the Cherena Endowment Fund. I'm Stephen Dubner. On the next Freakonomics Radio, what happens when a celebrity endorsement goes terribly wrong?