Vertical structure and efficiency assessment of the US oil and gas companies
Vertical structure and efficiency assessment of the US oil and gas companies
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DOI：
10.1016/j.resourpol.2019.101437
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发表时间：
2019-10-01
期刊：
影响因子：
10.2
通讯作者：
Goto, Mika
中科院分区：
文献类型：
--
作者：
Atris, Amani Mohammed;Goto, Mika
全球变暖和气候变化是近年来全球面临的重大问题。投资者和消费者希望企业管理层能够解决这些问题，并保证企业和社会的可持续性。业务和环境效率评估将是公司走向可持续管理的有效的第一步。本研究探讨了2011 - 2015年期间34家美国石油和天然气公司的两种类型的统一效率措施运营和环境。该数据集包括七家主要石油公司（综合公司）和27家独立公司。综合性公司沿着整个供应链运作，从上游勘探到下游零售。相反，独立公司只从事上游活动，如勘探和开发。本研究通过对数据集应用非径向DEA模型来衡量统一效率。Kruskal-Wallis秩和检验的应用，以检查是否两种类型的统一的效率措施随时间的推移而变化，以及是否有集成和独立的石油和天然气公司之间的差异。结果表明，整合后的公司在环境效率上优于独立公司。原因是综合公司的环保标准更高，以及它们努力建立以消费者为目标的战略品牌以促进销售。
Global warming and climate change have been critical global issues in recent years. Investors and consumers expect corporate management to battle these issues and guarantee the sustainability of the firm and society. Operational and environmental efficiency assessments would be an effective first step toward sustainable management for firms. This study examines two types of unified efficiency measures operational and environmental for 34 US oil and gas companies over the period 2011-2015. The data set comprises seven major petroleum companies (integrated firms) and 27 independent companies. Integrated companies operate along the entire supply chain from upstream exploration to downstream retailing. On the contrary, independent firms only engage in upstream activities, such as exploration and development. This study measures unified efficiency by applying non-radial DEA models to the data set. The Kruskal-Wallis rank sum test is applied to examine whether the two types of unified efficiency measures change over time and whether there are differences between integrated and independent oil and gas companies. The results reveal that integrated companies outperformed independent ones in environmental efficiency. The reasons are the higher environmental protection standards at integrated companies and their efforts in consumer-targeted strategic branding to promote sales.