Gopinath, Munisamy; Min, He; Buccola, Steven T. - In: Journal of Agricultural and Applied Economics 42 (2010) 04
We focus on regulations controlling the spread of noxious weeds, especially the trade effects of regulatory differences across U.S. states. We specify a gravity model for each state’s seed, nursery product, and commodity trade with each other state. Within the gravity model, we examine...