Kofi Obeng


Kofi Obeng
College of Business & Economics


Merrick Hall 213
B.S.Planning / University of Science and Technology
OtherUrban Planning / McGill University
MACity Planning / University of Pennsylvania
Ph.D.City Planning / University of Pennsylvania


B.Sc. (Planning) from the University of Science and Technology, Ghana; M.U.P. from McGill University in Montreal; M.A. and PhD from University of Pennsylvania, Philadelphia.

Research Interests

Transportation/Logistics, Productivity and Efficiency Analysis, Transport Economics, Transportation Planning, Transit Operations/ Management, Transit Finance and Subsidies, Transportation Safety.

Recent Publications

  • Ryoichi Sakano, Kofi Obeng (1995). (Re-examination of inefficiencies in urban transit systems: a stochastic frontier approach). (4) 31, pp. 377. Logistics and Transportation Review.
  • Kofi Obeng, Abul Azam, Ryoichi Sakano (1997). (Modeling economic inefficiency caused by public transit subsidies).
  • Ryoichi Sakano, Kofi Obeng, Abul Azam (1997). (Subsidies and inefficiency: stochastic frontier approach). (3) 15, pp. 113–127. Contemporary Economic Policy.
  • Kofi Obeng, Ryoichi Sakano (2000). (The effects of operating and capital subsidies on total factor productivity: a decomposition approach). pp. 381–397. Southern Economic Journal.
  • Kofi Obeng, Ryoichi Sakano (2002). (Total factor productivity decomposition, input price inefficiencies, and public transit systems). (1) 38, pp. 19–36. Transportation Research Part E: Logistics and Transportation Review.
  • Kofi Obeng, Mark Burkey (2006). (Explaining property damage from crashes at signalized intersections). (3) 29, pp. 217-231. Transportation Planning and Technology.
  • Kofi Obeng, Mark Burkey (2008). (Explaining crashes at intersections with red light cameras: a note). (5) 42, pp. 811-817. Transportation Research: Part A.
  • Kofi Obeng, Ryoichi Sakano (2008). (Public Transit Subsidies, Output Effect and Total Productivity). (1) 23, pp. 85-98. Research in Transportation Economics.
  • Ryoichi Sakano, Kofi Obeng (2011). (Examining the Inefficiency of Transit Systems Using Latent Class Stochastic Frontier Models). (2) 50, pp. 45-68. Journal of Transportation Research Forum.
  • Kofi Obeng, Ryoichi Sakano (2012). (Airline Fare and Seat Management Strategies with Demand Dependency). 24, pp. 42-48. Journal of Air Transportation Management.
  • Isaiah Ugboro (2015). (The Moderating Effects of Perceived Threat to Valued Job Features on Career Commitment among University Professors. ). (2) 24, pp. 39-52. Australian Journal of Career Development .
  • Ryoichi Sakano, Kofi Obeng, Keatra Fuller (2016). (Airport security and screening satisfaction: A case study of U.S.). (August) 55, pp. 129-138. Journal of Air Transportation management.
  • Ryoichi Sakano (2016). (Airport Security and Screening Satisfaction: A Case Study of U.S.). 55, pp. 129-138.. Journal of Air Transportation Management.
  • Kofi Obeng, Ryoichi Sakano, Cephas Naanwaab (2016). (Understanding Overall Output Efficiency in Public Transit Systems: The Roles of Regulations, Perceived Budget and Subsidies). (Msy) 89, pp. 133-150. Transportation Research Part E.
  • Kofi Obeng (2019). (Public transit cost efficiency: The impact of noncontracting regulation). 126, pp. 247-256. Transportation Research Part A.
  • Kofi Obeng, Ryoichi Sakano (2020). (Effects of Government Regulations and Input Subsidies on Cost Efficiency: A Decomposition Approach). (June) 91, pp. 95-107. Transport Policy.