中国西部开发研究评述

本文在改革开放以来我国东西部经济发展差距日益扩大的地区经济发展格局下,在充分吸收前人研究成果和参阅大量文献的基础上,对改革开放二十年以来我国学术界对西部开发的研究著作、西部开发中关于东西部经济发展差距拉大的原因、西部经济开发战略、西部产业结构调整、西部开发的经济布局、西部开发中对外开放和区际贸易等问题一一做了评述,指出了西部开发研究工作中取得的成绩和今后研究中可资注意的有关问题。     

地缘战略视角下“一带一路”倡议对中国对外直接投资的影响研究

“一带一路”倡议的提出兼具改善地缘环境和拉动对外投资的目的。然而，现有研究较少采取地缘战略视角分析“一带一路”倡议对于中国向“一带一路”沿线国家投资的影响。本文基于中国对外投资数据，通过整合政治地理学和经济地理学的相关研究成果，运用双重差分的面板回归模型考察“一带一路”倡议对中国在“一带一路”沿线国家投资的政策效应。研究发现，“一带一路”倡议提出后中国向中亚和西亚地区的投资比“一带一路”沿线其他国家增长更快，说明地缘战略对中国海外投资有重要影响；此外，中国对“一带一路”沿线国家的投资受中国与东道国经贸联系和东道国市场规模的影响，但是地理邻近性、东道国的制度环境和东道国自然资源等因素的影响不显著。本研究对于加强政治地理和经济地理的结合和制定中国对“一带一路”沿线国家投资政策等有参考意义。     

THE ECONOMIC LAW OF MARKET AREAS: A FURTHER DISCUSSION*

ABSTRACT. The Economic Law of Market Areas, so named by Fetter, is concerned with the division of a territory between two competing centers. It is argued that this Law can be conveniently examined in terms of six cases, each of which is specified by a combination of differentials in freight rates and prices at the two centers. The locational significance of each case is considered, along with the form and dimensions of the market-area boundary between the two centers. Three of the cases are each shown to subsume a special case. It is further shown that for any case except one, a reversal of the differentials between the two centers, while resulting in a symmetrically-equivalent outcome, requires a different (and usually substantial) respecification of the case.