Martha Olney is teaching professor in the Department of Economics at the University of California, Berkeley where she has taught since 1993. She received her Ph.D. in Economics from UC Berkeley in 1985. She previously taught at Univ. of Massachusetts, Amherst, Stanford University, and Siena College. She is the author of Buy Now Pay Later: Advertising, Credit, and Consumer Durables in the 1920s (UNC Press, 1991).