NEGATIVE FEEDBACKS IN THE ECONOMY AND INDUSTRIAL LOCATION*
将区域不对称和负反馈（拥堵）纳入经济地理与国际贸易模型，发现生产完全集中于一个地点不太可能，负反馈可解释现实中小型工业区的经济可行性。
ABSTRACT. Incorporating regional asymmetry and negative feedbacks (congestion) in a model of economic geography and international trade shows that complete specialization of production at one location is unlikely. We identify an agglomerating force: the home market effect, and two spreading forces, competition for demand from immobile sectors of production and congestion. We demonstrate that negative feedbacks can explain the economic viability of small industrial regions observed in the real world. Simulations clarify the basic structure of the model.