筛选: Committee Doner, Richard, Emory University 删除限定条件 Committee: Doner, Richard, Emory University Committee Giles, Micheal W, Emory University 删除限定条件 Committee: Giles, Micheal W, Emory University Keyword China 删除限定条件 Keyword: China Research Field Economics, Agricultural 删除限定条件 Research Field: Economics, Agricultural