Replaced with revised version of paper 07/22/08.

In many countries, including those in the European Union, Japan, Australia, and China, labeling is required for foods that contain genetically modified material. Other countries, including the United States, do not require mandatory labeling of GM foods. The United States, however, does allow...

Many countries require labeling for GM food products. These countries often have different levels of genetic modification that they will tolerate before a food product must be labeled as genetically modified. For example, the European Union and Australia allow up to one percent of any ingredient...

With the controversy over genetically modified (GM) foods continuing to grow, there has been a major push for mandatory labeling of GM foods by consumer advocacy and environmental groups in the United States. These groups maintain that consumers would benefit from labels. Other groups think that...

This paper assesses consumers’ acceptance of nutritionally enhanced vegetables using a series of auction experiments administered to a random sample of adult consumers. Evidence suggests that consumers are willing to pay significantly more for fresh produce with labels signaling enhanced...