Absorbing sets in roommate problems

We analyze absorbing sets as a solution for roommate problems with strict preferences. This solution provides the set of stable matchings when it is non-empty and some matchings with interesting properties otherwise. In particular, all matchings in an absorbing set have the greatest number of agents with no incentive to change partners. These “satisfied” agents are paired in the same stable manner. In the case of multiple absorbing sets we find that any two such sets differ only in how satisfied agents are matched with each other.     

Complements or substitutes? New theoretical considerations and empirical evidence on the imports and FDI relationship in Central and Eastern European Countries

This paper addresses the imperative need to understand the relationship between inward FDI and trade by developing a new conceptual approach and providing empirical evidence. We use an expanded time dataset, from 1992 to 2008 and an enriched dataset of countries, sectors and location factors. In regards to the inward FDI versus imports relationship, results comply with our theoretical formulation and strongly indicate an overall complementarity with each other. In the case of FDI we find strong locational characteristics such as the large market size, the gradual improvement of the macro-environment and finally the quality of labour force to play a positive role.     

Teaching Competitive Intelligence Skills to North American and Overseas Audiences: A World of Difference in Pedagogical Effectiveness

This article contrasts teaching methodologies and pedagogical effectiveness in executive development programs delivered in North America and three diverse regions of the world. Based on the authors' collective teaching experience exceeding 40 years encompassing over 24 countries, and augmented by a review of the literature, a theoretical model is posited addressing 10 criteria deemed discerning when executive development programs are delivered in diverse locales around the globe, with the aim of improving the effectiveness of teaching and learning.     

Trade facilitation and the extensive margin

The literature on trade facilitation has mostly focused on implications for trade volumes. However, recent theoretical contributions have emphasized that trade costs – such as transaction costs related to cross-border trade procedures – affect both the traded volumes of ‘old’ goods (the intensive margin) and the range of traded goods (the extensive margin). This article therefore tests whether trade facilitation affects the extensive margin by counting the number of 8-digit products that are exported from developing to EU countries, and using this as the dependent variable in an estimation. Moreover, it also tests whether the extensive margins in differentiated and homogeneous goods are affected in the same way by transaction costs. Estimation results suggest that if export transaction costs – proxied by the number of days needed to export a good – declined by 1%, the number of exported differentiated and homogeneous products would rise by 0.6% and 0.3%, respectively. Policy simulations further illustrate that if all countries were as efficient at the border as the most efficient country at the same level of development, the number of exported differentiated and homogeneous products would increase by 62% and 26%, respectively.     

新疆地质遗迹景观旅游开发动力机制构建

地质遗迹景观旅游开发的动力由内部驱动力、外部推动力和支持力组成.内部驱动力表现为资源禀赋状况、区域经济发展的需求和景区可持续发展的要求;外部推动力表现为旅游业的竞争压力、市场驱动力和政府调控力;支持力为基础设施的建设、旅游设施的完善和生态系统的支撑体系.通过分析系统内部各种作用力之间的相互联系和作用的关系、功能以及外部相关系统的影响和反馈,对驱动新疆地质遗迹旅游开发的力量结构体系及其运行规律进行研究,构建新疆地质遗迹景观旅游开发的动力机制.     

对欧盟农产品自愿性标准的解析

欧盟的农产品标准网络十分庞大而复杂,其中自愿性标准由于具有内容广泛、标准更严格灵活、具有事实上的强制力等特点,配合上欧盟本已十分复杂的农产品立法,为欧盟的农产品市场提供了有力的双重保护网络。与强制性标准比较,自愿性标准给农产品生产商和出口商带来更大的成本负担,并且由于其草根背景,反而更具隐蔽性,加之游离于WTO多边贸易谈判体制的管束,应对自愿性标准相对更加困难。因此欧盟的自愿性标准非常值得引起重视。     

欧元区主权债务危机问题研究

通过梳理欧债危机的起源和发展状况,总结欧洲应对危机的举措,探索欧债危机的根本原因,分析其对金融市场和全球经济的影响,以期为解决欧债危机问题提供建议,并为我国相关部门识别和应对欧债危机带来的风险提供参考。     

欧洲空间技术:战略目标与发展愿景

本文简要介绍了欧洲空间技术平台的相关背景、战略目标及欧洲空间未来技术的优先研究领域三大关键内容,对我国开展该领域的相关研究和促进同欧洲空间领域的合作具有重要的参考价值和实际意义.     

International equality of stock market returns

Real returns, excess returns, and nominal returns from stock markets in 11 developed countries are compared for the difference in their means and variances by using a new procedure to test their equality and to determine if one stock market dominates another. The sample period from January 1973 to September 1989 is divided into three subperiods. Results show that stock markets in the United States and Germany dominate those in the other countries in early sub-periods, but not in a recent sub-period, to indicate an increasing capital market integration. Integration with Germany has increased more than with the United States, due possibly to the European Monetary System.     

A New Method for the Identification of Patterns in Input–Output Matrices

This paper suggests a new algorithm for selecting the input–output (IO) coefficients of a Leontief matrix in order of importance, so providing an analytical method for decomposing an IO matrix. It avoids the choice of arbitrary thresholds for eliminating flows or coefficients, and allows for circular relationships. For this purpose, a simple inverse-important criterion has been chosen, which is consistent with the logic of the Leontief model. A procedure that greatly reduces the computational burden is then devised. This method permits new comparisons of IO structures of different countries or regions, for identifying their different degree of internal integration and their reciprocal influence through the exchange of intermediate goods. An application to an IO model for seven European Community countries for 1980 is then presented.