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한국 농업의 지역별 생산성 격차와 메타 프론티어 생산함수 추정
반경훈 ( Kyung-hoon Ban ),권오상 ( Oh-sang Kwon ) 한국농업경제학회 2016 農業經濟硏究 Vol.57 No.4
This study estimates the regional stochastic frontier production functions and the national meta frontier production function of Korean agriculture using micro-level production data of the period from 2003 to 2012. It is shown that regional variation of technical efficiency is larger than farm-level variation of technical efficiency within a region. The meta frontier itself does not show a significant improvement in productivity, but the regional and individual technical efficiencies were improved substantially. Moreover, it is found that regional efficiency was improved mostly in the regions where the proportion of high valued-added urban-oriented farming is higher.
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한국 농업 KLAM자료의 구축과 생산성 변화 요인 분석
권오상(Oh-Sang Kwon),반경훈(Kyung Hoon Ban),윤지원(Ji Won Yoon) 한국농업경제학회 2015 農業經濟硏究 Vol.56 No.3
This study constructs quantity and price indices of Korean agriculture for the period 1971-2013, to estimate the change in total factor productivity (TFP) and identify its sources. Inputs are aggregated into capita l (K), labor (L), land (A) and intermediate inputs (M). Constructed indices show that theer were three stages of productivity change: the stage of high output and input growth rates (1971∼1986), the stage of low output and almost zero input growth rates (1987∼ 1997), and the stage of negative input and output growth rates (2000∼2013). Average TFP growth rate substantially declined in the 3 stage. Our econometric analysis identifies three sources of productivity change: technical change, scale effect and factor-biasedness. Technical change is the largest source of TFP growth that occurred in the 2nd and 3rd stages. Scale effect was also a substantial source of productivity change because the technology exhibits increasing returns to scale. It is found that factor- biasedness also affected productivity change, but its overall impact is negative.
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