The Green Revolution and the productivity paradox: evidence from the Indian Punjab
研究发现,传统方法测算的印度旁遮普邦绿色革命期间全要素生产率增长被严重低估,修正后的年增长率高出100%至200%,解释了所谓的生产率悖论。
Abstract Contrary to a widespread belief, total factor productivity (TFP) growth, as measured by the conventional growth accounting approach, contributed little to economic growth during the Green Revolution in the Indian Punjab. This paper shows that this‘productivity paradox’ arises because of a fundamental problem with conventional measures of TFP growth. When technical change is not Hicks‐neutral, it is impossible to separate the contribution of technical change from that of factor accumulation. Simple exercises to assess the magnitudes involved in the Punjab case show that the bias in conventional TFP estimates is severe:‘corrected’ measures of productivity growth are between 100 and 200% higher per year during the Green Revolution.