This study analyzed whether there are mediating effects of government policies between the inputs and the economic performances of Korean bioenergy companies-this was accomplished by applying a mediating analysis by PROCESS Macro ver 2.16.3 (Hayes, 2013) based on a survey from the bioenergy companies. The analysis found that the increase in inputs of the Korean bioenergy companies affected the increase of performance through the government policies. In addition, comparing the mediating effects of detailed policies, this study found that said effects were greater in the order of RPS(Renewable Portfolio Standard) > the price variation of electricity = the obligation of greenhouse gas reduction > the changes in business scale based on RPS·RFS(Renewable Fuel Standard). However, it was found that the price variation of transportation fuels and RFS did not make a significant difference. There are two political implications of this study. First, to enhance the economic performance of bioenergy companies, the Korean government should keep the expanding trend of the current RPS. Second, the government needs to emphasize the importance of biofuels for transportation and make policies to develop related industries.

Abstract
 I. 서 론
  1. 연구의 배경 및 목적
 II. 이론적 배경 및 선행연구
  1. 기업성과의 지표와 결정요인
  2. 신재생에너지 지원정책
 III. 분석방법론
  1. 변수의 설정
  2. 연구모형 및 연구가설
  3. 설문조사의 구성 및 자료수집 방법
  4. 분석방법
 IV. 분석결과
  1. 설문조사 및 빈도분석 결과
  2. 타당성 및 신뢰도 분석결과
  3. 매개분석 결과
 V. 결론 및 정책적 시사점
 References

• 홍사도아(서울과학기술대학교 에너지환경대학원 에너지정책학과) | Sa Do A Hong (Department of Energy Policy, Seoul National University of Science and Technology)
• 김두천(서울과학기술대학교 에너지환경대학원 에너지정책학과) | Du Cheon Kim (Department of Energy Policy, Seoul National University of Science and Technology)
• 박중구(서울과학기술대학교 에너지환경대학원 에너지정책학과) | Jung Gu Park (Department of Energy Policy, Seoul National University of Science and Technology) Corresponding author