Always Leave Home Without It: A Further Investigation of the Credit-Card Effect on Willingness to Pay

In studies involving genuine transactions of potentially high value we show that willingness-to-pay can be increased when customers are instructed to use a credit card rather than cash. The effect may be large (up to 100%) and it appears unlikely that it arises due solely to liquidity constraints. In addition to demonstrating the effect, we provide a methodology for detecting it, and our findings suggest a source of variance to test alternative explanations.     

An empirical analysis of the factors raising the interest in new shopping destinations

The relationship among the factors in the rising interest in new alternatives is empirically investigated in the context of shopping destination choice behavior. The hypothetical causal relationship is that the rising interest in new alternatives requires both active information search and considerable benefit, which is supported by the results of the mixture structural equation models using a data set containing revealed shopping behaviors and attitudes toward shopping destinations in the Tokyo metropolitan area: a lower level of satisfaction with the current choice set incites external information search for all subjects; however, the benefit of adding new alternatives affects the interest in new alternatives only in the group that engages in active information search.     

Testing for multivariate volatility functions using minimum volume sets and inverse regression

We propose two new types of nonparametric tests for investigating multivariate regression functions. The tests are based on cumulative sums coupled with either minimum volume sets or inverse regression ideas; involving no multivariate nonparametric regression estimation. The methods proposed facilitate the investigation for different features such as if a multivariate regression function is (i) constant, (ii) of a bathtub shape, and (iii) in a given parametric form. The inference based on those tests may be further enhanced through associated diagnostic plots. Although the potential use of those ideas is much wider, we focus on the inference for multivariate volatility functions in this paper, i.e. we test for (i) heteroscedasticity, (ii) the so-called ‘smiling effect’, and (iii) some parametric volatility models. The asymptotic behavior of the proposed tests is investigated, and practical feasibility is shown via simulation studies. We further illustrate our methods with real financial data.     

基于Mi^Xi/Di/∞排队群的订单装配优化模型与算法

本文将Mi^Xi/Di/∞排队群引入供应链的订单装配模型中,采用启发式算法研究了稳态下基于组件基本存货水平、组件立即满足率的组件拖欠成本和持有成本的优化问题,从而找出了最优的组件基本存货水平,并给出了相应的数值例子.     

Testing population variance in case of one sample and the difference of variances in case of two samples: Example of wage and pension data sets in Serbia

Testing one population variance and the difference in variances of two populations based on the ordinary t-statistics combined with the bootstrap method are suggested in this article. Suggested techniques are combined with Hall's transformation approach. Application of presented methods in domain of real economic data set is described and analyzed. We compare the outputs of suggested methods and traditional methods for considered data set. The results show that these introduced methods have small advantages in comparisons with traditional methods especially for small samples.     

浅析思想政治工作与心理咨询

思想政治工作与心理咨询是从不同的角度促进个体人格的完善和品德的发展,都具有提高个体素质的共同目的。心理咨询有着不容忽视的思想政治工作功能。但心理咨询与思想政治工作依据的理论、运用的方法、涵盖的内容及运行的机制等存在差异。我们应加强思想政治工作与心理咨询之间的联系,以丰富思想政治工作的内涵,有利提高思想政治工作的效率。     

山东省基本公共服务质量测度及空间格局特征

以山东省17个地市为研究区域,通过构建基本公共服务质量评价指标体系,以熵值法确定指标权重,利用集对分析模型对2012年山东省17地市的基本公共服务质量进行了测度,并对其空间格局特征进行了分析,研究发现:1就基本公共服务类型划分而言,基本公共服务质量优秀的为青岛、东营、济南、威海、烟台、淄博;基本公共服务水平良好的地区为滨州、潍坊;基本公共服务中等水平地区为莱芜、济宁;基本公共服务较差地区为德州、泰安、日照、枣庄、临沂、聊城;菏泽基本公共服务最差。2就空间格局特征而言,呈现出沿着胶济线形成基本公共服务质量高水平地区,胶济线两翼的基本公共服务质量水平较低的特征;沿海地区与内陆地区相比,沿海地区的基本公共服务水平要远高于内陆地区;次级区域相比,半岛地区最优,其次是鲁中地区,再次是鲁西北地区,鲁南地区最差;就内部差异而言,半岛地区内部差距最小,鲁南地区次之,再次是鲁中地区,鲁西北地区最大。     

Advertising effects on consumer welfare: Prices paid and liking for brands selected

The effect of advertising on consumer welfare has been the subject of dispute among economists, arising largely from disagreement among scholars regarding the persuasive versus the informative role of advertising. This paper reports two experiments that explore the welfare implications of advertising effects. Experiment 1 shows that the same advertisements can either increase or decrease prices paid for selected brands, depending on the degree to which the choice situation requires brands to be recalled in order to be considered. However, an increase in prices paid caused by advertising does not necessarily imply detrimental effects on consumer welfare. Experiment 2 shows that, even under circumstances in which differentiating advertising leads consumers to select brands with higher average prices, it can provide useful information to consumers that allows them to make purchases that are more in line with their personal tastes than are the choices of consumers not exposed to the advertisements.     

论投资者决策行为模式中的倾向效应

行为金融研究发现 ,投资者的决策行为并非完全理性 ,“倾向效应”普遍存在于个人投资者和投资专业人士中。了解“倾向效应”及其心理动因具有积极的现实意义