Revisiting the Role of Education for Agricultural Productivity
使用95个发展中国家1961-2002年的面板数据，发现用教育年限衡量教育比用入学率或识字率更能显著提升农业生产率，平均每年增加约3.2%，且技术先进国家回报更高。
Various recent cross‐country regressions have detected insignificant or even surprisingly negative effects of schooling on agricultural productivity. Applying advanced panel econometric techniques to a sample of 95 developing and emerging countries from 1961 to 2002, we show that these results are due to a problematic reliance on enrollment and literacy indicators. Using data on educational attainment, we instead find a sizable and significant impact of schooling (avg. increase of approx. 3.2% per year of schooling) on agricultural productivity that is robust to estimation methods and model specification. We also find that returns from schooling are higher in technologically more advanced countries.