Microeconomic textbooks explain Giffen behavior as an extreme case of negative income effects. This focus on income effects is reflected in the numerical examples of preferences mappings that are provided in textbooks, namely preferences involving zero elastic income effects (quasilinear...

This paper analyzes consumers' choices between, as well as behavior within three selling mechanisms which are frequently used in online marketplaces: posted prices, ascending auctions and Buy-It-Now auctions. In an exploratory experiment, where subjects choose between one mechanism and an...