用违约距离判别信用风险:一个实证研究

本文选取了在中国A股市场上市的4家具有一定代表性的ST公司和4家对照公司，并通过计算从2003年到2005年的静态违约距离和不变增长率假设下的违约距离，发现后者比前者具有更好的判别能力；同时对影响违约距离大小的输入变量进行了敏感性分析，发现违约距离对股票收益波动率的变化最为敏感，因而精确计算波动率是关键。     

On Choosing and Bounding Probability Metrics

When studying convergence of measures, an important issue is the choice of probability metric. We provide a summary and some new results concerning bounds among some important probability metrics/distances that are used by statisticians and probabilists. Knowledge of other metrics can provide a means of deriving bounds for another one in an applied problem. Considering other metrics can also provide alternate insights. We also give examples that show that rates of convergence can strongly depend on the metric chosen. Careful consideration is necessary when choosing a metric.     

贫困与中国经济长期稳定增长的聚类分析

依据聚类分析,从收入差距、失业率与人口增长三个方面分析贫困对中国经济长期稳定增长的影响.结果可以看出,失业率与经济增长从负相关关系到正相关关系转变;经济的高速增长伴随着收入差距的扩大,但收入差距的扩大应当取决于经济增长的性质与经济结构;人口增长率与经济增长率之间存在一定的正相关关系.因此,解决贫困问题不仅要依赖经济的长期稳定增长,同时要考虑经济增长的结构特征.     

试析余华小说的叙述话语

先锋派所创造的叙述话语冲击和改变着传统的叙述话语表达方式 ,给文坛吹进了一股清新的风。余华是先锋派重要的代表作家之一 ,本文试就叙事重复的应用、叙述距离的把握、叙述角度的选择三方面分析其叙述话语的独特之处。     

Directional duality theory Directional duality theory

In this paper we introduce a complete duality theory based on directional distance functions. This duality theory parallels the duality theory based on radial distance functions in Färe and Primont (1995).     

Economic reforms,efficiency and productivity in Chinese banking

This paper analyzes the impact of banking reforms on efficiency and total factor productivity (TFP) change in Chinese banking industry. Using an input distance function, we find that joint-equity banks are more efficient than wholly state-owned banks (WSOBs). Furthermore, both WSOBs and joint-equity banks are found to be operating slightly below their optimal size, suggesting potential advantages in expansion of their businesses. Overall, TFP growth was 4.4% per annum for the sample period 1993–2002. Joint-equity banks experienced much higher growth in TFP (5.5% per annum) compared to the WSOBs (1.4% per annum).      

地理邻近在区域创新中的作用机理及其启示

由于隐性知识需要直接交流的特性与创新的背景依赖,邻近性在创新研究中越来越受到重视。文章从知识流动和集体学习的视角,探讨了地理邻近在区域创新中的作用机理。地理邻近是"距离产生美",太多或太少的地理邻近都不利于集体学习和区域创新,地理邻近与其它类型的邻近之间相互促进,并可以相互替代。最后给出了研究结论带来的启示。     

关系取向对员工满意影响的实证研究

在现有文献中,有关关系取向对员工满意影响的研究尚属空白.(1)通过15位服务人员的深度访谈,对关系取向的内涵进行定性探索;(2)预调查对量表的信度和效度进行评价并修改部分问项;(3)对天津连锁药店的86位店长和217位销售人员的正式问卷调查表明:关系取向、关系交换与员工满意正相关;个体文化差异对关系交换有负向影响,而对关系取向有正向影响.研究结果可以指导经理们提高上下级关系管理的有效性.     

The Economics and Bioeconomics of Folk and Scientific Classification

Synopsis This paper is the product of a collaboration between a biologist (Ghiselin 1997) who works on the philosophy of classification and an economist (Landa 1981, 1994) who works on the ‘Economics of Identity’: how and why people classify people based on identity in the context of a theory of ethnic trading networks. In developing the ‘bioeconomics’ (the synthesis of economics with biology) of classification, we crossed a number of disciplinary boundaries—anthropology, economics, sociology, biology, and cognitive psychology including evolutionary psychology’s ‘fast and frugal’ heuristics. Using a bioeconomics approach, we argue that folk classifications—the classifications used by ordinary persons—have much in common with scientific classifications: underlying both is the need for economy of information processing in the brain, for the efficient organization of knowledge, and for efficiency of information acquisition and transmission of information to others. Both evolve as a result of trial and error, but in science there is relatively more foresight, understanding, and planning.     

Organising international supplier relations: An exploratory study of Western purchasing in China

This paper analyses Western purchasing in China in order to investigate the motives for sourcing, the specific requirements of the area and, in particular, the base and features of supplier relationships. It reports recent experiences of seven companies based in Finland, including two global companies, two units with foreign ownership and three Finnish SMEs. Prevalent in Chinese sourcing are long-term supplier relations, but no partnership relations have been established. The companies build their supplier relations gradually and they all emphasise a long-term viewpoint to Chinese sourcing. Commitment of the Chinese partner is a key challenge, overcoming of which would help companies to avoid and solve, e.g. quality problems. The study shows that, for the Western supply personnel, key competences and tools for bridging the psychic distance are social skills and interest in the Chinese culture.