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英文文献：Labor Productivity Growth And Convergence In The Kansas Farm Sector: A Tripartite Decomposition Using The Dea Approach-劳动生产率的增长和堪萨斯州农业部门的趋同:使用Dea方法的三分分解
英文文献作者：Mugera, Amin W.,Langemeier, Michael R.
英文文献摘要：
The objective of this paper is to analyze sources of labor productivity growth in the Kansas farm sector over the period 1993-2006 for a sample of 668 farms. The nonparametric production frontier method is used to decompose labor productivity growth into three components: (1) technological catch-up, (2) technological change, and (3) capital deepening. Kernel estimation methods are used to analyze the evolution of the entire distribution of labor productivity in the sample period. We find that labor productivity is primarily driven by capital deepening. On average, capital deepening is the main source of convergence in productivity and technical change is a source of divergence. We find little evidence of technological catch-up. The impact of the three components of labor productivity varies by farm size.
本文的目的是分析堪萨斯农场在1993-2006年间劳动生产率增长的来源，样本为668个农场。利用非参数生产前沿法将劳动生产率增长分解为三个组成部分:(1)技术追赶、(2)技术变革和(3)资本深化。采用核估计方法分析了劳动生产率在样本期内的整体分布演化。我们发现，劳动生产率主要受资本深化的驱动。平均而言，资本深化是生产率趋同的主要来源，而技术变革是差异的来源。我们几乎没有发现技术追赶的证据。这三个要素对劳动生产率的影响因农场规模的不同而不同。
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