Genetically modified (GM) foods have caused many controversies. One important controversy relates to tolerance?the impurity rate that is tolerated before a commodity must be labeled as genetically modified. Currently, the United States does not have a specific tolerance or threshold level for GM...

Public debate continues over whether the United States should regulate genetically modified (GM) foods by imposing a mandatory labeling policy. This paper develops a model that shows that a voluntary GM-labeling policy results in higher welfare than a regulated mandatory GM-labeling policy, if...

During the last decade, experimental auctions and stated choice (SC) surveys have been widely used to study food demand. These methods have complementary strengths and weaknesses. Experimental auctions are limited by the availability of products and the use of locally recruited participants,...