技术本地溢出条件下的集聚与增长——基于NEGG模型的分析

Under the Conditions of Local Technology Spillover Gathering and Growth——Based on the Analysis of the Model,NEGG

20世纪90年代,保罗.克鲁格曼等人开创了新经济地理理论(简称为NEG理论),经济活动的区位问题得到了前所未有的重视。马丁和奥塔维诺首次把新增长理论方法引入新经济地理的理论框架,通过资本的内生形成与地区分布研究不同地区的经济增长问题,形成新经济地理与增长理论(简称NEGG理论)。本文基于NEGG理论的基本框架,分析技术本地溢出和资本自由流动条件下的产业集聚与经济增长关系。由于假设资本在地区之间可以自由流动,该模型适合分析一国内部不同地区之间的集聚与增长之间的关系。研究发现,当假设技术为本地溢出时,地理影响增长,企业集中分布提高经济增长率。此外,技术溢出的强度也影响增长率,溢出强度越大,增长率也越高。

In early 1990s＇,New Economic Geography initiated by Paul Krugman etc.has reached its theoretical consolidation.The location problem of the economic activity has been reconsidered.Martin and Ottaviano invited the methods of New Growth theory to NEG for the first time.They studied the problem of the different region＇s growth through the endogenous formation and regions distribution of the capital.So the theory is called as New Economic Geography and Growth.This paper presents a new economic geography and growth model with localized technological spillovers and capital perfectly mobile.This model suits for analyzing the relation between agglomeration and growth within a nation because of the assumption that the capital can be mobile perfectly between the regions.This study reveals that the geography affects the growth when the technology is localized spillovers.The agglomerate distribution of the enterprises increases the rate of the economic growth.Besides the intensity of localized technological spillovers affect the rate of growth.The more intense is the localized spillovers,the higher is the rate of growth.