Estimating the Market Effect of a Food Scare: The Case of Genetically Modified StarLink Corn
研究2000年未获人类食用批准的转基因StarLink玉米污染食品供应后，对美国玉米市场价格的影响，发现价格下跌6.8%且持续至少一年。
In 2000, a genetically modified corn variety called StarLink that was not approved for human consumption was discovered in the food-corn supply. To estimate the price impact of this event on the U.S. corn market, we develop the relative price of a substitute method. This method applies not only to the StarLink event but also to rare events in other markets. We find that the contamination led to a 6.8% discount in corn prices and that the suppression of prices lasted for at least a year. Copyright by the President and Fellows of Harvard College and the Massachusetts Institute of Technology.