Affiliation: | 1. Moody's Analytic, 121 N Walnut St Suite 500, West Chester, PA 1980, USA;2. Department of Agricultural and Resource Economics, Oregon State University, 213 Ballard Extension Hall, Corvallis, OR 97331, USA;3. International Food Policy Research Institute, 2033 K Street, NW, Washington DC, 20006, USA |