SPATIAL SCOPE OF A MODERN TRANSPORT TECHNOLOGY
研究托运人如何内生选择传统或现代运输技术，发现现代技术因高固定成本和高速度，在中距离而非长距离被选用，因为长距离下运输收入不足以覆盖成本。
ABSTRACT This paper studies the endogenous choice of transport technology, “traditional” versus “modern,” by a shipper. Although the “modern” technology is characterized by higher fixed costs and a higher speed of transport, it is chosen for intermediate distances, rather than to long distances. The reason is that, when the shipper switches to the “modern” technology, the industrial firm changes production from the home to the foreign city. Thus, the demand for transport decreases proportionally to the distance between the home and foreign city. For long distances, revenue from transportation becomes so low that the “modern” technology does not break even.