THE QUESTION OF EFFICIENCY IN URBAN BUS TRANSPORTATION*
估计了美国城市公交服务的生产前沿面，发现规模经济不重要，但该受管制行业存在显著的技术和配置无效率。
ABSTRACT. This paper estimates a flexible frontier specification for the production of urban bus transit services in the United States. The results confirm previous findings of relatively unimportant scale economies. However, they also suggest that this regulated industry is subject to substantial technical and allocative inefficiency.