1. 1College of Natural and Applied Sciences, University of Guam, 303 University Dive, UOG Station, Mangilao, GU 96913
2. 2School of Economic Sciences, IMPACT Center, Washington State University, P.O. Box 646210, Hulbert Hall, Pullman, WA 99164
3. 3Paul G. Allen School for Global Animal Health Allen Center, Washington State University, P.O. Box 647090, 1155 College Avenue, Pullman, WA 99164
4. 4School of Agriculture and Environment, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
5. 5Department of Agricultural and Resource Economics, Colorado State University, B317 Clark Building, Campus Delivery 1172, Fort Collins, CO 80523