David W. Gillen

• Airline cost and performance
• Competition and regulation
• Impact of Liberalizing International Aviation Bilaterals
• Assessing the benefits and costs of ITS
• Canadian airline deregulation and privatization
• Canadian transportation policy
• Effect of changes in parking prices and parking restrictions on urban transport demands and congestion levels
• Effects of changes in parking prices and parking restrictions on urban transport demands and congestion levels
• Estimation and specification of the effects of parking costs on urban transport mode choice
• Identifying and measuring the impact of government ownership and regulation on airline performance
• Impact of Liberalizing International Aviation Bilaterals : The Case of the Northern German Region
• The effects of parking costs on mode choice