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- W619157260 abstract "Numerous studies were conducted to analyze ports’ productivity, efficiency and competitiveness based on commercial goods and services that ports produce. However, no empirical study has been yet undertaken regarding the environmental efficiency of ports since all previous studies have not considered undesirable outputs that ports generate, for instance, CO2 emissions. To fill the gap in the literature, the objective of this study is to estimate environmental efficiency of ports. More specifically, this paper intends to analyze environmental efficiency of ports in Korea and to estimate the potential CO2 emission reduction by port in the country. The main methodology is a Slacks-Based Measure Data Envelopment Analysis (SBM-DEA) model. Data were collected and estimated on labor, capital and energy used as major inputs of port sector and on cargo tonnage and vessel tonnage handled as desirable output and on CO2 emissions as undesirable output. The SBM-DEA model could provide the authors with more comprehensive efficiency of combining economic performance and environmental performance and also capture slack values of input excess and undesirable output excess (CO2) as well as desirable output shortage. Using the model and the data, it was found that Korean ports are deemed to be economically inefficient, but environmentally efficient when considering economic and environmental performances simultaneously." @default.
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- W619157260 date "2012-01-01" @default.
- W619157260 modified "2023-09-24" @default.
- W619157260 title "Environmental Efficiency of Ports: A DEA Approach" @default.
- W619157260 hasPublicationYear "2012" @default.
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