Wang, Nanying; Houston, Jack - Southern Agricultural Economics Association - SAEA - 2015
separate futures contract for No. 2 soybeans, which includes GM soybeans. With this change, the No. 1 soybean futures contract … contract soybeans as the price premium for non-GM soybeans. An intervention analysis is used to test the effects of the events … on the price premium for non-GM soybeans in each sub-period. We investigate the impacts of three events—two contract …