This paper provides the first rigorous, empirical evidence of the existence of Giffen behavior, i.e., a situation in which consumers respond to an increase in the price of a good by demanding more of it. We begin by examining several theoretical approaches to the Giffen phenomenon and show that...

Many people care about how they are perceived by those around them. Several recent field experiments in economics have found that such social image concerns can have powerful effects on a range of behaviors. In this article, we first review this recent literature aimed at identifying social...

Many people care about how they are perceived by those around them. A number of recent field experiments in economics have found that such social image concerns can have powerful effects on a range of behaviors. In this paper, we first review this recent literature aimed at identifying social...

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...