Monopolistic Competition, Nonhomotheticity, and the Stability of the Chamberlinian Tangency Solution
在一般均衡框架下检验张伯伦切点解是否稳定，发现进入可能使企业利润上升并导致解不稳定，给出了稳定性的充要条件，对国际贸易和产业组织理论有参考价值。
The focal point in the recent literature on international trade and monopolistic competition is to recast the Chamberlinian partial equilibrium theory in a general equilibrium framework. Using a similar setting, this paper asks whether the Chamberlinian tangency solution is stable under general equilibrium. Paradoxical results follow. When entry occurs, profit per firm can increase and the tangency solution can be unstable. A necessary and sufficient condition for stability is obtained. The concepts of average and marginal factor intensities play an important role in obtaining the stability. Copyright 1990 by Economics Department of the University of Pennsylvania and the Osaka University Institute of Social and Economic Research Association.