安徽在长三角城市群中定位与空间发展战略的思考

安徽作为长三角的纵深腹地,在地理上与苏浙沪发达地区无缝对接,在资源开发、产业发展、市场开拓等方面具有广泛的合作空间,在长三角城市群经济社会发展中将发挥着重要作用.安徽省委、省政府审时度势,进一步明确了安徽加快发展的主攻方向,作出了推进东向发展,加速回归长三角的重大决策.论文在长三角城市群发展趋势分析的基础上,提出安徽省分层次、分时序融入长三角的模式,探讨了"东向发展"的安徽省域城镇发展总体战略,并对其在长三角城市群中的定位和空间发展战略做了一些思考.     

A Spatial Structural Decomposition Analysis of Chinese and Japanese Energy Demand: 1985–1990

This paper proposes a spatial structural decomposition analysis to measure the effects of the changes in intra- and inter-country linkages on the embodied energy demand in the concerned country. For the empirical analysis, we have used the China- Japan inter-country input–output tables for 1985 and 1990, expressed in constant prices of 1990. The empirical results reveal that (1) at least for the period between 1985 and 1990, the effects of the non-competitive input structural changes in China on the primary energy requirements of Japan were negligible, and (2) the contribution of the Japanese final demand shifts on the total change in Chinese primary energy demand was 40 times larger than that of the Chinese final demand shifts on the primary energy requirements of Japan. The Japanese policy makers should concentrate on the energy impacts of the changes in the domestic production structure rather than the changes in the Chinese production structure.     

Evidence on corruption as an incentive for foreign direct investment

This paper assesses the relationship between corruption and inward foreign direct investment (FDI). Previous research has presumed that corruption directly enters the cost function of multinationals, suggesting a negative relationship between corruption and FDI. For a sample of 73 developed and less developed countries and the time period 1995–1999, we find a clear positive relationship between corruption and FDI. Corruption is thus a stimulus for FDI.     

Overeducation, regional labor markets, and spatial flexibility

For most workers, access to suitable employment is severely restricted by the fact that they look for jobs in the regional labor market rather than the global one. In this paper we analyze how macrolevel opportunities (regional market characteristics) and microlevel restrictions (the extent to which job searchers are restricted to the regional market) can help to explain the phenomenon of overeducation. We use a two-step procedure to control selective access to employment. The results show that the size of the labor market is an important factor in avoiding overeducation.     

Finding a Nash equilibrium in spatial games is an NP-complete problem

Summary. We consider the class of (finite) spatial games. We show that the problem of determining whether there exists a Nash equilibrium in which each player has a payoff of at least k is NP-complete as a function of the number of players.Received: 15 September 2002, Revised: 9 March 2003, JEL Classification Numbers: C72.Correspondence to: H. HallerWe thank a referee for helpful comments. The hospitality of the Institute of Economics, University of Copenhagen, and the Institute for Advanced Studies, Vienna, is gratefully acknowledged by the third author.     

土地政策改革时期的城市空间发展:北京的实证分析

论文探讨北京城市空间发展的特征、并探究空间发展的特征与正在发展壮大的土地市场和土地制度改革之间的关系.利用1993年到2000年上半年北京城市建设区土地使用权出让数据,实证分析显示土地价格及土地开发密度都随着距城市中心区的距离增加呈下降趋势.实证分析还表明地租的曲线的空间变化与土地使用类型相关.这些实证证据支持如下结论:正在形成的土地市场确实影响城市土地开发和空间形态.实证分析还显示地租曲线的斜率和土地-资本替代弹性系数都随着时间的推移而变化.正如城市经济理论所预测,地租曲线斜率的下降是由于北京大量的交通投资降低了交通成本,从而又反过来使城市土地地租空间变化曲线发生旋转.土地-资本替代弹性指数的增加意味着价格影响土地开发密度.这两者的变化都反映出北京的土地市场正走向成熟.应该指出,在土地市场之外(在行政划拨的土地上)进行的大量开发对北京正在形成和发育的土地市场会产生扭曲.     

中国城市经济增长的效率与差异

本文在利用Malmquist指数和一系列反映地区差异的统计指标对中国216个地级市1990~2004年经济增长的效率和差异进行描述的基础上,针对2000年以来中国城市经济表现出的新特点,采用因子分析和空间计量方法分析了影响中国城市经济增长的主要因素,结果表明216个地级市TFP整体呈现增长趋势,城市经济的地区差异明显且呈扩大趋势。2000年以来影响中国城市经济增长的因子强度依次为:地理位置、产业结构与市场化水平和要素投入等。     

空间知识溢出与我国区域经济发展政策研究

依托空间知识溢出修正模型,根据我国31个省级行政区面板数据的实证研究,揭示我国区域经济发展中的“知识溢出盆地”现象;同时根据区域间知识溢出效应的差异和实证结果,对我国区域经济发展和区域技术追赶问题进行分析研究,为我国区域经济发展提出相应的政策建议。     

中国经济增长与能源消费空间面板分析

近年来面板数据广泛应用于各类统计分析,但变量的空间相关并没有引起足够的重视。本文引入空间面板回归模型研究中国各省市区经济增长和能源消费的关系。利用matlab软件及其spatial econometric模块建立和比较传统面板回归模型与空间面板回归模型,结果表明空间面板回归模型较传统面板回归模型优越,本文的研究为空间面板数据分析提供了一个应用实例。     

Matching and anonymity

This work introduces a set-theoretic foundation of deterministic bilateral matching processes and studies their properties. In particular, it formalizes a link between matching and informational constraints by developing a notion of anonymity that is based on the agents’ matching histories. It also explains why and how various matching processes generate different degrees of “informational isolation” in the economy. We illustrate the usefulness of our approach to modeling matching frameworks by discussing the classical turnpike model of Townsend.This research is supported in part by the NSF grants EIA-0075506, SES-0128039, DMS-0437210, and ACI-0325846. We thank two anonymous referees for constructive comments that improved the exposition of the paper. We also thank the participants in seminars at the University of Aarhus, Purdue University, University of Texas at Austin, and at the XI Meeting on Real Analysis and Measure Theory in 2004, the spring 2004 Midwest Economic Theory Meeting, the summer 2004 North American and European Econometric Society meetings.