Technical Efficiency, Scale Efficiency, Environmental Efficiency and the Analysis of the Decision Factors

기술효율, 환경효율, 규모효율과 그 결정요인 분석 -한국농가의 소득계층을 중심으로-

  • 강상목 (부산대학교 상과대학 경제학과) ;
  • 김태수 (부산대학교 상과대학 경제학과) ;
  • 김태구 (부산대학교 상과대학 경제학과) ;
  • 이동명 (부산대학교 상과대학 경제학과)
  • Published : 2005.09.30

Abstract

The purpose of this paper is to estimate technical efficiency, scale efficiency, and environmental efficiency by income level of Korean farms, and analyze the factors to decide three efficiencies. Depending on the non-parametric methods, we estimate technical using inputs and outputs of total farms without assuming of goods or behavior of optimization. The average technical efficiency of total firms under constant return to scale and strong disposability is 0.437. The technical inefficiency was caused by 47.7% in pure technical inefficiency, 11.3% in scale failure, and 3.2% in environmental inefficiency. The number of firms under increasing return to scale occupied almost 70% and 27% of total firms respectively. Higher are income class, middle debt & long debt per asset, and N effluents per cultural land, higher technical efficiency. The increases of BOD discharges per cultural land and machines per cultural land deteriorate environmental efficiency.