Earticle

초록

영어

Recently, the importance of natural gas is on the increase. The natural gas has become an abundant energy source because of advances in drilling technology. Specially, The development of shale gas has made traditional resources replace. Moreover, natural gas as a major energy source is much better “environment-friendly” than fossil fuels. Being used, natural gas produces and emits much less CO2 and pollutants than oils and coals. As the efficient management and use of natural gas is a meaningful topic, we focus on the efficient management of Korean city gas in terms of return on assets and capacity utilization. Accordingly, the principal aim of this paper is to measure and decompose return on assets in city gas firms. In particular, the paper confirms that change in return on assets(ROA) is influenced by productivity change, price change, change in capacity utilization, and potential asset turnover. Actually, change in ROA is decomposed using linear programming methods with thirty-one city gas firms for 2012-2014. the main empirical results for the same periods are presented being separated into two periods. Average ROA change(1.871) was decomposed into the inner factors such as average price change(1.077), average productivity change(1.146), average capacity utilization change(0.990), and average potential asset turnover(1.082), respectively for 2012-2013. ROA change was greatly dominated by productivity change. Likewise, Average ROA change(0.743) is explained by average price change (0.782), average productivity change(0.947), average capacity utilization change(1.040), average potential asset turnover (0.926), respectively for 2013-2014. In this period, ROA was greatly influenced by price change. As shown in the results, ROA is mostly influenced by productivity change, price change, capacity utilization change, and potential asset turnover. But the change of capacity utilization was not improved every year. So city gas firms need to increase ROA through the use of excess capacity and the reallocation of inputs and outputs.

목차

Ⅰ. 서론
 Ⅱ. 이론모형
 Ⅲ. 자료 및 실증결과
 Ⅳ. 결론
 참고문헌
 Abstract

키워드

저자

• 김용덕 [ Yong-Deok Kim | IBK경제연구소 연구위원 ] 제1저자
• 강상목 [ Sang-Mok Kang | 부산대학교 경제통상대학 경제학과 교수 ] 교신저자

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  생산성연구: 국제융합학술지 [Productivity Research: An International Interdisciplinary Journal]

• 간기

  격월간

• pISSN

  1225-3553

• 수록기간

  1987~2025

• 등재여부

  KCI 등재

• 십진분류

  KDC 325 DDC 330