Cournot Competition Yields Spatial Agglomeration
证明，在空间上实行歧视定价的古诺寡头竞争会导致企业空间集聚，且自由进入均衡下企业不一定获得超额利润。
Most theoretical models of spatial competition show a strong tendency toward spatial dispersion of firms, yet common observations suggest that firms tend to agglomerate. In this paper, the authors show that competition between Cournot-type oligopolists that discriminate over space leads to spatial agglomeration. One implication is that firms do not (necessarily) earn supernormal profits at the free-entry equilibrium. Copyright 1991 by Economics Department of the University of Pennsylvania and the Osaka University Institute of Social and Economic Research Association.