Manipulating an aggregation rule under ordinally fuzzy preferences

It is well known that many aggregation rules are manipulable through strategic behaviour. Typically, the aggregation rules considered in the literature are social choice correspondences. In this paper the aggregation rules of interest are social welfare functions (SWFs). We investigate the problem of constructing a SWF that is non-manipulable. In this context, individuals attempt to manipulate a social ordering as opposed to a social choice. Using techniques from an ordinal version of fuzzy set theory, we introduce a class of ordinally fuzzy binary relations of which exact binary relations are a special case. Operating within this family enables us to prove an impossibility theorem. This theorem states that all non-manipulable SWFs are dictatorial, provided that they are not constant. This theorem uses a weaker transitivity condition than the one in Perote-Peña and Piggins (J Math Econ 43:564–580, 2007), and the ordinal framework we employ is more general than the cardinal setting used there. We conclude by considering several ways of circumventing this impossibility theorem.     

The Impact of Educational Homogamy on Isolated Illiteracy Levels

In this article, we explore the impacts that education expansion and increased levels in educational homogamy have had on couples’ isolated illiteracy rates, defined as the proportion of illiterates in union that are married to an illiterate partner. First, we develop the methodology to decompose isolated illiteracy rates into two main components: one related to level of homogamy among illiterates, and the other related to the educational distribution of the spouses. Second, we use harmonized international census microdata from IPUMS and DHS data for 73 countries and 217 samples to investigate which of the two components is more important in shaping the level of isolated illiteracy. Our results indicate that the expansion of literacy has been more powerful than the increases in the tendency toward homogamy in its impact on isolated illiteracy rates. As the percentage of illiterates decreases over time, an increasingly large proportion of them marry literate individuals, showing that opportunities for intermarriage among illiterates expand despite the strengthening of homogamy.     

苏州地铁某车站深基坑围护结构监测分析

对苏州地铁某车站明挖基坑施工进行跟踪监测，及时掌握围护结构变形、支撑内力的变化动态，以指导施工确保基坑稳定。经过对比分析基坑有、无加固措施的变形和支撑内力的变化特征表明：基坑外水泥土搅拌桩加固措施的设置，可以有效地减小围护结构的水平变形，并且能够阻碍边坡滑移破坏面的发展，减小作用于地下连续墙上面的土压力，使得内支撑上的最大轴力减小。     

Robust Methods of Building Regression Models—An Application to thè Housing Sector

This article studies robustification strategies for the linear model in the presence of outliers. The advantages of an internal analysis of the robustness of least squares for a given sample are pointed out. The application of this methodology is illustrated by building an explicit model of the determinants of rental housing values in the Madrid Metropolitan Area.     

Examining coping strategies used by Spanish female social work students: evidence for the importance of social problem-solving abilities

The present study examined the role of social problem-solving abilities in the coping strategies used by 310 female social work students from Spain. Results from comparative analyses of the coping strategies, used by students to deal with stressful situations, indicated the greater use of functional forms of coping (eg problem solving and cognitive restructuring), compared to dysfunctional forms of coping (eg problem avoidance and wishful thinking). Moreover, results from regression analyses indicated that constructive social problem-solving abilities, namely, positive problem orientation and rational problem solving, predicted the use of functional coping strategies (eg problem solving, cognitive restructuring, and express emotions). Alternatively, one damaging social problem-solving ability, namely, negative problem orientation, predicted the use of dysfunctional coping strategies (eg problem avoidance, wishful thinking, self criticism, and social withdrawal). Taken together, these findings provide an important first step for understanding what and how social problem-solving abilities might inform how social work students cope with stressful situations as they arise. Some implications for social work education and training are discussed.     

2007中国经济特区论坛暨纪念香港回归10周年研讨会综述

2007年6月5-6日,由教育部省属高校人文社会科学重点研究基地深圳大学中国经济特区研究中心主办的"2007中国经济特区论坛暨纪念香港回归10周年学术研讨会"在深圳大学召开。新华社香港分社原副社长、浙江大学原党委书记张浚生,原深圳     

当代大学生消费状况调查报告——以河北科技师范学院为例

论文在河北科技师范学院大学生消费状况的调查资料基础上,分析了当代大学生的消费结构、消费特点以及存在的问题,并提出了以下几点建议:大学生自己要树立合理的消费观念,父母要注重培养孩子正确的消费观念,高校要健全奖学金和贷款等方面的管理制度,社会要规范大学生的消费市场秩序.     

Gamson’s law and hedonic games

This note adds one celebrated coalition formation game due to Gamson (Am Soc Rev 26:373–382 1961a, Am Soc Rev 26:565–573, 1961b) in the list of applications of the theory of hedonic games explored by Banerjee et al. (Soc Choice Welf 18:135–153, 2001) and Bogomolnaia and Jackson (Games Econ Behav 38: 204–230, 2002). We apply their results to study the original Gamson game and offer extensions both to a multi-dimensional characteristics space and to an infinite number of players.     

对供应商自建经销渠道的思考

供应商与零售商的矛盾长期存在。当前,供应商自建经销渠道、零售商发展自有品牌是各自的重要对策。供应商通过自建经销渠道掌控市场、维护自身品牌,但也存在弊端。对此,应该从政府、供应商自身以及行业协会等方面积极采取现实可行的措施,建立和谐的零供关系。     

守望乡土：人口快速城镇化不能损害三农发展

人口城镇化是经济社会现代化的重要方向、重要机制和重要成果。但城镇化的速度和模式一定要遵循客观规律,既不能“拔苗助长”(典型如“被城镇化”),也不能“顾此失彼”(突出如以农村凋敝为代价换取城镇的发展),我称之为“快速城镇化陷阱”。我国的新型城镇化应该新在质量高、效益好,而不是速度快、新城多。当下中国正处于城镇化大跃进的阶段,城镇化冲动极其强烈,2012年,常住人口城镇化率达到52.57%,户籍人口城镇化率只有35.14%,正处在城镇化发展规律S曲线30%-70%的加速通道上。速度太快了,容易失衡和断裂,掉入“快速城镇化陷阱”,这显然有违我国城镇化之初衷。