新经济地理视角下地区生产效率、质量投入与产业集聚

Regional Production Efficiency, Quality Input and Industrial Agglomeration from the Perspective of New Economic Geography

新经济地理发展下的异质性企业模型以生产率差异为基石,认为高生产率企业具有低边际生产成本,忽视了产品质量的垂直异质性。本文试图讨论地区生产效率和质量投入双重异质对产业集聚的影响,研究结果显示,市场非对称情况下,单独提高质量投入比单独提高生产率更有优势,单独提高质量投入会随着运输成本的下降而增加市场份额,单独提高生产率则会在运输成本降到一定阈值后导致地区市场份额的削弱;此外,生产率和质量投入“两头兼顾”的方式虽然会增加地区市场份额,但是其所带来的集聚力会弱于单独提高质量投入的方式。总的来看,未来把握好地区的质量投入才是扩大地区产业集聚和空间分布情况的重要途径。

The model with heterogeneous firms under the development of new economic geography takes productivity diffe-rences as the cornerstone, believes that high productivity firms have low marginal production costs, and ignores the vertical heterogeneity of product quality.This paper attempts to discuss the impact of the dual heterogeneity of regional production efficiency and quality input on industrial agglomeration.The research results show that under the asymmetric market, it is more advantageous to improve the quality input alone than to improve the productivity alone.The approach of improving the quality input alone will increase the market share with the decline of transport costs, and the approach of improving the productivity alone will lead to the weakening of the regional market share after the transport costs fall to a certain threshold;In addition, although the“dual consi-deration”approach of productivity and quality input will also increase regional market share, the agglomeration force it brings will be weaker than the approach of improving quality input alone.In general, it is an important way to expand regional industrial agglome-ration and spatial distribution to grasp the quality input of the region in the future.