CER | 沈智扬 等：中国农业生产率的演变【转】
摘要谷歌简单翻译（请以英文为准）：
自1978年以来，中国经历了一系列农业政策改革。衡量生产率的提高和确定其潜在驱动因素是政策分析的重要方面。常用的全要素生产率（TFP）度量通常缺乏诸如优化方向（方向）的完整性或独立性之类的期望属性。在本文中，我们采用自顶向下的方法，从TFP度量开始，然后将其分解为三个相互排斥的，详尽的元素。特别是，我们从添加完整的Luenberger-Hicks-Moorsteen（LHM）TFP指标开始，该指标在测量生产率时考虑输入和输出变化，然后将其加性分解为技术进步，技术效率变化和规模效率变化的度量。我们开发了LHM TFP指标的广义分解，其包括随时间的输入导向和面向输出的变化。我们使用来自中国31个省份1997 - 2015年期间的农业数据来说明这种完全的LHM TFP指标。我们的实证结果表明，中国农业生产率增长（每年3.05％）主要受技术进步（2.35％p.a。）推动，规模效率变化（0.65％p.a。）和技术效率变化（0.04％p.a。）的贡献相对较小。我们还发现，生产力的变化及其组成部分的相对重要性在时间和省份都有所不同。
China has undergone a series of agricultural policy reforms since 1978. The measurement of the productivity gains and identification of the underlying drivers thereof are important facets of policy analysis. The commonly used Total Factor Productivity (TFP) measures often lack such desirable properties as completeness or independence of the direction of the optimization (orientation). In this paper, we take a top down approach by beginning with a TFP measure and then decomposing it into three mutually exclusive, exhaustive elements. In particular, we begin with the additively complete Luenberger-Hicks-Moorsteen (LHM) TFP indicator that takes into account both input and output changes when measuring productivity and then additively decompose it into measures of technological progress, technical efficiency change, and scale efficiency change. We develop a generalized decomposition of the LHM TFP indicator which encompasses both input-oriented and output-oriented changes over time. We illustrate this additively complete LHM TFP indicator using agricultural data from 31 Chinese provinces over the period 1997–2015. Our empirical results show that Chinese agricultural productivity growth (3.05% per annum) was mainly driven by technological progress (2.35% p.a.), with relatively small contributions from scale efficiency change (0.65% p.a.) and technical efficiency change (0.04% p.a.). We also found that productivity change and the relative importance of its components varied across both time and provinces.
出处：
Zhiyang Shen, Tomas Baležentis, Gary D.Ferrier. Agricultural productivity evolution in China: A generalized decomposition of the Luenberger-Hicks-Moorsteen productivity indicator. China Economic Review, 2019
https://doi.org/10.1016/j.chieco.2019.101315
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