TY - JOUR AU - Jensen,Robert T. AU - Miller,Nolan H. TI - Giffen Behavior: Theory and Evidence JF - National Bureau of Economic Research Working Paper Series VL - No. 13243 PY - 2007 Y2 - July 2007 UR - http://www.nber.org/papers/w13243 L1 - http://www.nber.org/papers/w13243.pdf N1 - Author contact info: Robert T. Jensen UCLA School of Public Affairs 3250 School of Public Affairs Building Box 951656 Los Angeles, CA 90095-1656 Tel: 310-825-9865 Fax: 310-206-0377 E-Mail: robertjensen@ucla.edu Nolan H. Miller College of Business University of Illinois at Urbana Champaign 4033 BIF 515 East Gregory Drive Champaign, IL 61820 Tel: 217/244-2847 E-Mail: nmiller@illinois.edu AB - This paper provides the first real-world evidence of Giffen behavior, i.e., upward sloping demand. Subsidizing the prices of dietary staples for extremely poor households in two provinces of China, we find strong evidence of Giffen behavior for rice in Hunan, and weaker evidence for wheat in Gansu. The data provide new insight into the consumption behavior of the poor, who act as though maximizing utility subject to subsistence concerns, with both demand and calorie elasticities depending significantly, and non-linearly, on the severity of their poverty. Understanding this heterogeneity is important for the effective design of welfare programs for the poor. ER -