On economic geography in economic theory: increasing returns and pecuniary externalities
解释为何自由竞争市场无法处理集聚和区域失衡，并回顾1990年代在递增报酬和垄断竞争下经济地理理论的进展。
Our objective is twofold. First, we show why there is a spatial question in economic theory â why a free competitive market is unable to cope with agglomeration and regional imbalance in the absence of market distortions. Second, using a new and simple model, we review what has been accomplished in economic theory during the 1990s when due allowance is given to increasing returns, while market structure is given by monopolistic competition.\n