Environmental Efficiency of Ports: A DEA Approach

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.


  • English

Media Info

  • Media Type: Digital/other
  • Features: References; Tables;
  • Pagination: pp 341-350
  • Monograph Title: Proceedings of the International Forum on Shipping, Ports and Airports (IFSPA) 2012: Transport Logistics for Sustainable Growth at a New Level

Subject/Index Terms

Filing Info

  • Accession Number: 01484728
  • Record Type: Publication
  • ISBN: 9789623677578
  • Files: TRIS
  • Created Date: Jun 23 2013 7:55PM