摘要
In contrast to most of the literature on a circular market in which firms choose to disperse equally from each other in equilibrium, this research note shows that the equal-distance dispersion in a circular market results from the substitutability of products produced by two single-plant duopoly firms. Meanwhile, agglomeration at one point results from complementarity. In the multi-plant duopoly case, we find - in contrast to Chamorro-Rivas (2000) - that when firms sell complements, the equilibrium locations tend to exhibit both inter-firm agglomeration and intra-firm dispersion. In other words, the location layout in equilibrium exhibits spatial agglomeration (by pairs) finitely at many points. © Springer-Verlag Berlin/Heidelberg 2003.