【作者(必填)】
Kantor S, Whalley A.
【文题(必填)】
Research proximity and productivity: long-term evidence from agriculture
【年份(必填)】
【全文链接或数据库名称(选填)】Kantor S, Whalley A. Research proximity and productivity: long-term evidence from agriculture[J]. Journal of Political Economy, 2019, 127(2): 819-854.