시설수박의 출하시기별 효율성 분석
An Analysis of the Efficiency of Watermelon Using the Bootstrapping DEA Model
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초록
The paper aims to estimate efficiency of watermelon by using a bootstrapping approach to generating efficiency estimates through Monte Carlo simulation resampling process. We use the input-output data for watermelon 107 farmers. The main results are as follows. The estimates of efficiency depends on the methodology. The estimates of general DEA is greater than the bootstrapping method. The technical efficiency and pure technical efficiency measure of watermelon is 0.72, 0.82 respectively. However the bias-corrected estimates are less than those of DEA. We know that the DEA estimator is an upward biased estimator. According to these results, the DEA bootstrapping model used here provides bias-corrected and confidence intervals for the point estimates, it is more preferable.
Abstract
The paper aims to estimate efficiency of watermelon by using a bootstrapping approach to generating efficiency estimates through Monte Carlo simulation resampling process. We use the input-output data for watermelon 107 farmers. The main results are as follows. The estimates of efficiency depends on the methodology. The estimates of general DEA is greater than the bootstrapping method. The technical efficiency and pure technical efficiency measure of watermelon is 0.72, 0.82 respectively. However the bias-corrected estimates are less than those of DEA. We know that the DEA estimator is an upward biased estimator. According to these results, the DEA bootstrapping model used here provides bias-corrected and confidence intervals for the point estimates, it is more preferable.
참고문헌 (6)
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- Min. J. H., "A Nonparametric Test on Mean Difference of DEA Efficiency Estimates - Bootstrapping Approach", Journal of the Korean Operations Research and Management Science Society, 24(2), pp.53~68 (1999)
- 이상호, "시설원예농업의 난방유형에 따른 효율성 분석", 농업경제연구, 54(1), pp.39~53 (2013), 한국농업경제학회
- 이상호, "확률적 DEA모형에 의한 품목농협의 효율성 분석", 농업생명과학연구, 45(6), pp.279~289 (2011), 농업생명과학연구원
- Lee, S. S., "An Analysis on the Efficiency of Apple Production in Environmental Agriculture Using DEA", Korean Journal of Agricultural Economics, 42(2), pp.51~65 (2001)
- Simar, L., "Statistical Inference in Nonparametric Frontier Models: the State of the Art", Journal of Productivity Analysis, 13, pp.49~78 (2000)[DOI]