Market-Specific Effects of Rail Deregulation
研究了1980年美国铁路行业部分放松管制后，对34种不同商品运输费率的影响，发现放松管制对几乎所有商品都有显著影响，且效果因商品和时间而异，到1988年几乎全部降低了费率。
Since partial deregulation of the railroad industry in 1980, real rail rates have fallen. Yet, previous studies are inconclusive in identifying deregulation as the reason for lower rates. In this paper, the author develops a model that tests a variety of deregulation effects on the rates charged for transporting thirty-four different commodities. The results suggest that deregulation has significantly affected almost all commodities and that the effects vary by commodity and through time. Initially, deregulation increased rates for some commodities, had no effect on others, and decreased rates on still others. However, by 1988, deregulation lowered rates significantly for almost all commodities. Copyright 1994 by Blackwell Publishing Ltd.