ECONOMIES OF SCALE AND ENTRY IN SPATIAL MARKETS
在Lösch模型中引入长期成本函数，发现当成本水平下降时，单位面积福利可能反而降低，这一反直觉结果挑战了空间市场文献中广泛使用的短期成本假设。
ABSTRACT For the purposes of simplicity, short‐run cost functions are widely used in spatial markets literature, even when the long‐run effects of entry are in question. In this paper, I show that if a long‐run cost function is incorporated into a Löschian model, counter‐intuitive and novel performance characteristics can result. Under some circumstances welfare per area can decrease as cost levels decrease.