Giving gifts to groups: How altruism depends on the number of recipients

When a single gift goes to a group of recipients, how does giving depend on the size of the group? This question is important for understanding charitable giving and fund-raising, public goods provision, family altruism, and more. If we think of the gift as giving up a dollar to create a social surplus, then we want to know how the number of recipients of that surplus affects its value to the giver. In other words, how congestible is altruism? This paper builds a theoretical framework for this question and begins to answer it with a controlled experiment. The finding is that for most subjects altruism is congestible. For the average subject, a gift that results in one person receiving x is equivalent to one in which n people receive x / n^0.68 each.     

国有企业改制后职工安置及再就业探讨——以江西省赣州市为例

国有企业改制后的职工安置及安置和再就业是关系到国企改制是否成功的关键。以赣州市为例,其改制过程中的职工安置和再就业有许多可取的经验,同时也存在着一些问题。欲妥善地做好职工安置,企业必须经过缜密调查研究,结合企业内部和外部环境的实际确定职工安置和再就业的程序并制定出一套具体的职工安置和再就业方法和措施。     

The Role of Monetary Policy in the New Keynesian Model: Evidence from Vietnam

This paper re-designs the New Keynesian model developed by Ireland (2004 Ireland, P. N. (2004). Technology shocks in the New Keynesian model. The Review of Economics and Statistics, 86(4), 923–936. doi: 10.1162/0034653043125158[Crossref], [Web of Science ®] , [Google Scholar]) and then uses the Vietnamese data from January 1995 to December 2012 to estimate the model's parameters. The empirical results show that the State Bank of Vietnam had been more aggressive as well as more responsive to aggregate fluctuations in the period before August 2000 than in the latter period. Thus, this change in the policy stance could be a potential reason for the declining importance of monetary policy in generating movements in output growth, inflation, interest rate, and the output gap across the subsamples. Another notable finding is the dominant role of the cost-push shock in explaining fluctuations in inflation, interest rate, and the output gap, leading to a policy implication that more attention should be devoted to developing substitute and complement industries so as to mitigate negative effects of the cost-push shocks by reducing the degree of dependence on imports.     

基于GRA-TOPSIS的军校学员基层管理核心能力评估

部队基层管理核心能力是基层管理能力的核心内容,是军校学员必需具备的军事能力。本文利用理想解法与灰色关联度相结合的方法,很好地解决了评估军校学员基层管理核心能力水平生成层次的问题,并为寻找学员基层管理能力弱项提供了方法借鉴。     

基于用户偏好的多特征融合个性化图书推荐模型

随着图书馆图书数量的增加,读者无法快速获取自己所需资源。针对数字图书馆无法为用户提供准确个性的图书推荐服务的问题,通过分析个性化推荐技术,构建了一种基于用户偏好的个性化图书推荐模型,并进行了系统的研究。最后通过试实验验证其模型的有效性。     

Modelling Risk Perceptions of Stakeholders in Public–Private Partnership Toll Road Contracts

This paper investigates the risk perceptions of key stakeholder groups typically involved in public–private partnership (PPP) toll roads. Risk perceptions have an important impact on these PPP schemes for investing in public infrastructure. However, the nature and extent of risk associated with the specification of a PPP contract that commits contracting parties to deliver on their obligations remain unclear. In the context of major transport infrastructure, such as a new toll road, the often‐cited key risk to investors is the traffic (and hence demand) risk. There are, however, other risks, including political risk and media risk, the latter often causing untold harm resulting in modifications to the planned infrastructure. This paper develops a method to capture evidence on how public sector and private sector partners involved in previous PPPs perceive the levels of risk associated with each risk attribute, as a way of identifying the ex ante risk setting brought to negotiations in PPP toll road investments. Using a sample of 101 experts with contract experience in 32 countries, we develop a stated choice experiment and estimate a discrete choice model to quantify a risk profile index (RPI) to capture the perceived (relative) influence of each dimension of risk, and then identify sources of systematic differences in the RPI as a way of understanding the influence of personal traits and contextual and contractual factors.     

Engineering Hedonic Attributes to Generate Perceptions of Luxury: Consumer Perception of an Everyday Sound

For the last twenty years, the perception of hedonic attributes has been a problematic matter in consumer research. We argue that the perception of a hedonic product attribute should not be considered as an irreducible holistic experience, but rather as a complex set of sensory experiences, the components of which are identifiable and quantifiable. We provide evidence for this position by proposing a reliable method linking the features of product-related sound stimuli to consumer perception of hedonic attributes. To our knowledge, this study is the first of its kind offering a detailed investigation of consumer perception of everyday sounds (as opposed to music). We discuss managerial and consumer-level implications of the findings and provide an agenda for future research.     

Changing Perceptions and Changing Behavior in Customer Relationships

We formulate a theoretical model in which we postulate that if customers' behavior is perceived as not optimal, customers will adjust this behavior based on their current satisfaction and payment equity. Furthermore, customers will also include new experiences. In our empirical study we particularly investigate customer referrals and the amount of services purchased. Our results show positive effects of current satisfaction and payment equity on referrals, while also changes in satisfaction and payment equity affect customer referrals. With respect to the amount of services purchased, our estimation results reveal a positive significant effect of only changes in satisfaction.     

“非中介化”、农户货币偏好与农户信用重建研究

本文对农村金融中的常态“非中介化”和农户货币偏好规律进行了探讨,揭示伴随农户借贷行为而产生农户融资渠道的转变和货币偏好,这两种经济现象背后的实质是信用的核心———普适性信任在发生作用,提出通过建立农户贷款担保基金和强化农村合作经济组织建设,以重构农户信用。同时,通过完善农村信用社的经营机制和产权结构,优化对农户信用缺失约束的外部环境,以增强双方的信任度,从而达到消除农村金融中的常态“非中介化”等对农户收入增长的不利因素。