国土资源数据整合方案设计及其实现研究

研究目的：基于国土资源数据现状,提出有效整合方案,为国土资源信息化建设提供借鉴。研究方法：以ETL技术框架为基础,结合数据挖掘技术和GIS技术,设计符合国土资源数据整合要求的解决方案,并以常州市为例进行实证研究。研究结果：数据整合方案有效快捷地解决了常州市国土资源数据整合。研究结论：方案智能化提高了数据整合过程的数据分析能力、处理能力和效率,有效地从国土资源数据本身解决了整合难题,对市县级国土资源数据整合有借鉴意义。     

股指期货对A股波动性的影响

鉴于GARCH模型适合研究金融时间序列的方差随时间变化的情况,笔者采用该模型研究股指期货的推出能否减少股票市场的波动性。本文选取股指期货推出前后一年的沪深300指数的日收盘价作为原始数据,通过建立GARCH模型就股指期货对股票市场波动性的影响进行了实证研究,结果显示,股指期货的引入在一定程度上降低了我国股票现货市场的波动性,但不显著。     

出口退税、贸易盈余和外汇储备的一般均衡分析与中国的实证

本文构建了一个简单的大国开放经济一般均衡模型,从理论上探讨了外汇储备从贸易盈余时的短期均衡到贸易平衡时的长期均衡的动态变化过程,并在此基础上量化分析了降低出口退税率对长期均衡时的外汇储备的影响。研究表明,降低出口退税率在短期内对减少贸易盈余和控制外汇储备增量有一定的帮助,但长期来看则与出口产品的价格弹性密切相关,只有降低那些价格弹性较大的产品的出口退税率,才能够有效地减少长期均衡时的外汇储备,否则可能产生适得其反的效果。中国数据的实证研究支持了理论模型的结论。由于中国的出口产品总体缺乏价格弹性,因此,近年来实行的一系列出口退税政策改革在长期内使国家外汇储备出现了一定程度的增加。本文最后提出了相关的政策建议。     

试论"入世后过渡期"出口企业应对新贸易壁垒的措施

根据我国加入WTO协定，我国将逐步履行承诺，到2006年底执行完全入世承诺。“入世后过渡期”对我国企业的影响深远。在传统贸易壁垒作用日益减弱的今天，技术壁垒、绿色壁垒、社会壁垒等新贸易壁垒已成为我国外贸发展的主要障碍。为了减少以至于消除新贸易壁垒的不利影响，我国出口企业必须尽快与国际通行的环境管理制度相衔接。而大力提高国民的环保意识，积极申请绿色认证，推行绿色管理，建立和完善绿色政策和法规正是我国出口企业突破新贸易壁垒的有效手段，以确保我国对外贸易的可持续发展。     

Catching up: The role of demand, supply and regulated price effects on the real exchange rates of four accession countries

The main aim of this paper is to examine the exchange rate behaviour of a group of four transitional, EU accession countries, with a view to making policy recommendations regarding their full accession to the European Monetary Union. We employ a dynamic OLS panel estimator to investigate the relative importance of demand and supply influences on the exchange rates of these countries. Our analysis shows that both supply‐ and demand‐side effects are important for the accession countries, although their overall effect on inflation differentials and competitiveness seems to be small. An additional focus of the paper is the examination of the role that administrated, or regulated, prices and the productivity of the distribution sector play in the real exchange rate dynamics. Using a unique database we show that administrative prices have been a powerful force behind price and real exchange developments for our group of accession countries. The distribution sector is shown to have an independent effect on the internal price ratio over and above that generated by the Balassa–Samuelson effect.     

Adoption of professional management in Chinese family business: A multilevel analysis of impetuses and impediments

Building upon the market, institutional, and cultural perspectives, this paper identifies the major impetuses and impediments that affect the professionalization of Chinese family business at the environment, firm, and owner levels. Our integrative framework projects that whether a family business owner will adopt professional managers is largely determined by the relative strength of impetus factors and impediment factors. We then discuss the possible governance choices under different configuration of impetuses and impediments. This theoretical framework is expected to help set the momentum for further conceptual exploration and empirical study in this area.

长三角区域市场的地区分割——基于边界效应模型的分析

改革开放以来,我国地方市场分割问题一直比较突出,而建立全国统一开放的市场是我国经济转轨中最重要的目标之一。如何实现经济协调发展是我国当前急需解决的一个重大问题。基于此目的,本文构造了一个以边界效应模型为基础的分析框架,以长江三角洲八城市的行业部门为样本,进行实证检验。通过投入产出法计算得到行业之间的边界效应值。结果表明,在长江三角洲地区诸多的行业中市场分割与地方保护仍然比较严重。因此,长江三角洲并未实现真正的市场一体化。     

Innovation and competitive advantages from the integration of strategic aspects with social and environmental management in European firms

This paper analyses the nature and details of the association that the integration of social and environmental considerations with corporate strategy has for different competitive advantages and innovation activities at the firm level. Its objective is to answer the question as to whether a positive link exists between integration and the effects of environmental and social performance on these different dimensions of economic performance. The question of the specific form of this relationship is also raised. These questions are analysed using cluster analysis and regression models. Results are presented for four different dimensions of competitive advantage, and for two types of innovation activity. These raise the possibility that the process of integration is more important for bringing about a positive link than a resulting integration type. Copyright © 2007 John Wiley & Sons, Ltd and ERP Environment.     

Sign here,please! On developing countries’ market access conditions in regional trade agreements

Have regional trade agreements (RTAs) improved market access conditions for developing countries? Employing a measure expressing effective tariff margins and using disaggregated panel data for a sample of 45 developing country exporters, 60 export destinations, and the period between 1991 and 2015, it is shown that this question can generally be answered in the affirmative. Although the effect is estimated to be moderate, RTAs might thus be an important long‐run building block in the United Nations 2030 Agenda for Sustainable Development in order to increase developing countries’ participation in world trade. On closer inspection, however, for the countries included in the sample, there is considerable variation depending on the choice of integration partners and economic sectors. More specifically, market access improvements cannot be found for African economies in South–South agreements and developing countries engaging formally with the European Free Trade Association (EFTA) or the Republic of Korea, while leading industrialized nations are reluctant to grant improved market access to developing countries in RTAs especially in capital‐intensive (high‐productivity) manufacturing sectors.     

影响中美贸易的诸因素分析

本文采用2001年1月～2008年12月样本,在双边贸易引力模型的框架下,采用协整分析、向量误差修正模型等计量方法,在汇率和中美两国GDP等影响因素基础上,分析中国垂直专业化对于中国对美出口、中国自美进口和中美贸易差额的影响。研究结果表明,中国垂直专业化程度不断加深促进了中国对美出口、抑制了中国对美进口,加剧了双边贸易的不平衡。