Applying DEA to Evaluate the Energy Efficiency, Carbon Reduction Efficiency, and Environmental-Economic Efficiency of the World's Major Countries

• Main Authors: Wu, Jung-Tang, 吳忠唐
• Other Authors: Wu, Tai-Si
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/78032661684015589548

碩士 === 國立臺北大學 === 企業管理學系 === 101 === With the rise of energy and environmental issues, energy saving and carbon reduction is one of the major policies now and in the future for many countries. In order to achieve the goal of sustainable development, national policy-makers should know their energy efficiency and carbon reduction efficiency before making environmental policy. The scopes of the study are APEC member countries, OECD member countries, and Taiwan's four cities during the 2006-2010 period, and we use environmental DEA technology and environmental SBM to evaluate their efficiency. The first part of this study is using environmental DEA model to evaluate the energy efficiency and carbon reduction efficiency. In the second part, we establish environmental-economic efficiency and use regression analysis to explore the key environmental variables. Finally, we use Malmquist Productivity Index to understand the change of their productivity during the study period. The results show that the majority of the country’s energy efficiency is greater than their carbon reduction efficiency both for APEC and OECD. In order to reduce carbon dioxide emissions, countries with energy inefficiency should first improve their energy efficiency, and countries with energy efficiency but with carbon reduction inefficiency should enhance the proportion of renewable energy sources and adjust the industrial structure. For the majority of APEC member countries, the economic efficiency is greater than their environmental efficiency, whereas the situation is reversed for OECD members. Almost all countries have improved their productivity during the study period because of the technical progress.