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An Empirical Analysis on Market Power and Productivity in the Korean Medical Service Industry

한국 의료서비스산업의 시장지배력과 생산성에 관한 실증분석

  • 박세훈 (관동대학교 경제금융학과) ;
  • 강주훈 (관동대학교 경제금융학과) ;
  • 정용식 (관동대학교 의료경영학과)
  • Received : 2014.01.08
  • Accepted : 2014.03.11
  • Published : 2014.04.30

Abstract

This paper establishes the empirical model based on Hall's(1990) and Basu' s(1996) models, estimates the five types of productivity in the medical service industry over the period 1975:1-2010:4, and analyzes the cyclicality of measured productivities and their correlations with the industrial real wage. The empirical results are summarized as the followings. First, there proved to be substantial market power in pricing and returns to scale in production for the medical service industry. Second, the three types of productivity among 5 types showed to be procyclical. Third, the average labor productivity, the original Solow residual, and the cost-based Solow residual are expected to provide reasonable indexes in analyzing the relationship between productivity and real wage.

본 논문은 Hall(1990)과 Basu(1997)의 모형에 근거하여 생산성추정모형을 설정하고, 분석기간 1975:1-2010:4에 걸쳐서 의료서비스 산업에 있어서 생산성을 5개의 형태로 측정한 다음 생산성의 순환성을 밝히고 실질임금과 측정된 생산성과의 연관성을 분석하였다. 시장지배력을 제거하고 규모의 보수를 고려하여 솔로우잔차항을 측정한 결과 의료서비스 산업에서 시장 지배력이 크게 존재하고 있으며 생산측면에서 규모의 보수가 크게 존재하고 있다는 것이 확인 되었다. 시장지배력을 제거하는 경우 솔로우잔차항은 강한 경기순행성에서 강한 경기역행성으로 전환되었음을 볼 수 있다. 이러한 결과는 시장지배력을 나타내는 대리변수인 산업별 마크업의 경기역행적인 특성이 작용하고 있는 것으로 추론할 수 있다. 또한 실질임금증가율과 생산성과의 관계를 분석할 때 생산성지표로서 노동생산성이나 본래의 솔로우잔차항 또는 시장지배력을 제거한 총비용에 근거한 솔로우잔차항이 적정한 지표로 활용될 수 있음을 밝히고 있다.

Keywords

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