2005 Volume 6 Pages 4192-4207
Like many mega cities in developing countries, commuters in Bangkok face problems of insufficient public transport under control of the government. Thus, passenger vans play important roles in providing alternative to serve these commuters. Conventional bus operators considered that the passenger vans were competitors to take the passengers. The government claimed that this competition caused lower revenue for the bus operators. Therefore, the government enforced regulations of maximum price and entry for the passengers vans. But market structure between the passenger vans and conventional buses is unclear. For evaluating the effect of these regulations, the study aimed to identify the market structure of public transport for commuters between the passenger vans and conventional buses using the northern corridor of Bangkok as a case study area. Oligopoly markets with implications of product differentiation and collusion were discovered from results of case study surveys. Deregulation of entry and price was recommended.