Thanks a Million, Oprah

Professor Mankiw links to a paper that examines the value of celebrity endorsements and suggests that Ms. Winfrey's support of Senator Obama brought him an additional 1,000,000 votes.

Craig Garthwaite and Tim Moore of the University of Maryland Economics department admit that there are substantial hurdles to accurately measuring the effect of any endorsement, but they do some reasonable extrapolation of Oprah's clout in book sales and other items featured on her show. Interstin'...

Politics Posted by jk at August 5, 2008 4:02 PM