India's post‐green‐revolution agricultural performance: what is driving growth?
使用增长核算方法分析印度2000年代农业增长加速的原因，发现增长由生产率提升、面积扩张和灌溉技术等多因素驱动，而非仅靠产量增长或产品多样化。
Abstract Following a period of poor performance in the 1990s, India's agricultural growth rate has reaccelerated in the 2000s. Some believe the reacceleration has been a product of intensified investment, which in turn has spurred yield growth. Others suggest it is because India's newly wealthy citizens have demanded greater product diversification. To examine these hypotheses, we use growth accounting techniques in conjunction with more complete agricultural production data than in past studies to construct state, regional, and national output, input, and total factor productivity quantity indexes, which can be decomposed into their underlying sources. Sectoral performance evaluation suggests that, since 1980, output growth has diffused away from the northern “grain belt” and toward high‐value agriculture in traditionally less‐productive regions. Productivity growth, rather than resource use, has accounted for these geographical and intensity shifts. The growth burst has not, as the literature has primarily argued, been uniquely explainable by yield growth or product diversification but by a variety of factors, including area expansion. For example, the contributions of irrigation technologies permitting double‐cropping have until now been largely ignored.