When and why attribute sorting affects attribute weights in decision-making

Information about alternatives often appears in a multi-option multi-attribute table, with the alternatives hierarchically sorted on attribute levels. This research shows that the choice of the primary sorting attribute can affect peoples' evaluations. Three studies show that the attribute on which options are primarily sorted becomes more important in preference formation, but only if this attribute is hard to evaluate. This sorting effect disappears if attribute level evaluation is rendered easier. Eye-movement data further show that the time to evaluate a given attribute level, a proxy for evaluation effort, mediates the effect of choice of sorting attribute on attribute weight in option evaluation.     

The microfoundations of macroeconomics: an evolutionary perspective

We consider the microfoundations controversy from the perspectiveof economic evolution. Although the analogy between biologyand economics has been noted before, it has rarely focused onclarifying the micro–macro distinction in economic theoryand modelling. The micro–macro debate is more developedin biology than in economics owing to a greater degree of specialisationand a greater degree of interaction between various sub-disciplines.The task for economists is to distinguish between insights directlyrelevant for economic theory and ones that hinge on unique featuresof biological systems. We argue that both micro and macro processesdrive economic change and that macroeconomic change cannot beexplained by microlevel optimising alone. We show that debatesin biology about group selection and punctuated equilibria arerelevant to understanding economic evolution. The oppositionof reductionism and holism is of little use and, in its place,a hierarchical approach is proposed. This allows for both upwardand downward causation and interaction between levels.     

Increased sorting and wage inequality in the Czech Republic

This paper makes use of a linked employer–employee dataset to examine the evolution of wage inequality in the Czech Republic during 1998–2006. We find evidence of slightly increasing returns to human capital and diminishing gender inequality and document sharp increases in both within‐firm and between‐firm inequality. We investigate several hypotheses to explain these patterns: increased domestic and international competition, decentralized wage bargaining, skill‐biased technological change and a changing educational composition of the workforce. Domestic competition is found to lower within‐firm inequality whereas we find no evidence that increased international trade at the industry level is associated with higher between‐ or within‐firm wage inequality. The key factors driving the observed increase in wage inequality are increased educational sorting and the inflow of foreign firms to the Czech Republic.     

两银行博弈与邮政储蓄变革的优化战略选择

邮政储蓄是一项金融业务,但现阶段却在业务、技术与管理上受到非金融机构的制约,并承担着补贴邮政亏损、保障邮政体系正常运行的繁重的社会负担.本文首先介绍了两银行假设下的分离均衡;然后结合20世纪90年代的"揽储大战"分析了邮政储蓄的错误市场定位导致的对甄别机制的破坏和金融动荡;同时解析了现行体制下邮政储蓄经营效率的三重损失;最后提出解决邮政储蓄难题的权宜之计与根治之法,并进行了成本比较.     

基于AHP的库存产品分类模型研究

提出了一种基于层次分析法的库存物资分类方法,此方法可以在考虑多种影响因素的情况下对纷繁复杂的库存产品进行分类排序,因此更加科学。