爱国情感引发暂时性抵制冲突国产品行为的实验研究

随着全球化的进一步发展,各国间的经济、政治、军事、文化等突发性冲突也随之增多,这类矛盾会影响消费者在国际市场上的购买行为。此领域在国际营销界受到越来越多的关注,但在国内尚鲜有人进行实证研究。突发性的国家间冲突导致某国消费者暂时性地抵制另一国的产品,在此浪潮中影响个体消费者抵制行为的因素及作用机制是什么？本文在定性研究的基础上构建了一个新的概念——爱国情感,并建立假设与模型,然后用2×2×2的组间实验检验假设。本研究发现,当突发性国家冲突发生时,冲突所引发的消费者的爱国情感越强,冲突国产品的产品比较效用越低,则消费者越倾向于抵制该国产品。但是实验结果无法支持从众压力影响抵制行为的假设。     

Firm interdependence in oligopolistic markets

This paper develops an econometric model capable of identifying the pattern of interdependent behavior among firms in an oligopolistic industry. The model is based on the necessary conditions for producer equilibrium which, for a firm in an oligopolistic market, include the firm's conjectural variations. The conjectural variations are unknown parameters. The production model is based on the translog production function. The domestic coffee roasting industry is analyzed. Industry and size class specific Cournot and equality hypotheses are tested. Interdependent behavior cannot be rejected.     

Some applications for Basil's independence theorem in testing econometric models

Basu's Independence Theorem is used to show how tests of compound econometric hypotheses, involving two or more naturally ordered hypotheses, may be based upon mutually independent test statistics.     

Learning curves and lot sizing for independent and dependent demand

This paper explores the effect of learning curve cost behavior, as opposed to linear, on lot sizing. The first portion of the paper develops optimizing models for the independent demand situation. The second portion examines lot sizing for dependent demand, developing a lot sizing rule similar to Part Period Balancing.After examining the shortcomings of previous attempts at the independent demand lot sizing problem, two models are derived. Excluding material costs (for an assembly operation, the cost of all components), the optimal lot size is seen to vary linearly with demand and inversely with the carrying cost rate.When material costs are included a smaller optimal lot size is derived. The difference between the two, expressed as a fraction of the smaller lot size, equals the material/labor ratio of the last unit produced in the smaller lot size. For dependent demand, the incremental model developed by Freeland and Colley as an improvement on Part Period Balancing is used as a beginning concept. An analogous model, called Assembly Period Balancing, is developed for learning curve cost behavior. The decision rule for combining lots is expressed as a comparison of the material/labor ratio of the lot considered for combining with another expression involving the carrying cost rate, relative lot size and the learning curve exponent.Finally, cost data from an electronics manufacturer are used to examine the cost penalties of failing to recognize learning curve cost behavior. It is shown that optimal lot sizes for learning curve costs can be much larger than those obtained assuming linear costs. It is also shown that much larger lots can be economically combined in the dependent demand case when costs follow a learning curve.     

Pitfalls of testing non-nested hypotheses by the lagrange multiplier method

In applied research in econometrics a general model determined from the current knowledge of economic theory often establishes a ‘natural’ method of embedding a number of otherwise non-nested hypotheses. Under these circumstances, significant tests of various hypotheses can be carried out within the classical framework, and tests of non-nested or separate families of hypotheses do not require development of new statistical methods. The application of some suitable variant of likelihood ratio testing procedure will be quite appropriate.There are, however, many ocassions in applied econometrics where the hypotheses under consideration are intended to provide genuine rival explanations of the same given phenomenon and the state of economic theory is not such as to furnish us with a general model that contains both of the rival hypotheses in a ‘natural’ and theoretically consistent manner. A number of investigators have advocated that even when a ‘natural’ comprehensive model containing both of the hypotheses under consideration cannot be obtained from theoretical considerations, it is still appropriate to base significant tests of non-nested hypotheses upon a combined model ‘artificially’ constructed from the rival alternatives. Moreover, in a recent paper on the application of Lagrange Multiplier (LM) tests to model specification, T.S. Breusch and A.R. Pagan (1980) have claimed that Cox's test statistic is connected to an LM or ‘score’ statistic derived from the application of the LM method to an exponentially combined model earlier employed by A.C. Atkinson (1970).Although the use of ‘artificially’ constructed comprehensive models fortesting separate families of hypotheses is analytically tempting, nevertheless it is subject to two major difficulties. Firstly, in many cases of interest in econometrics, the structural parameters under the combined hypothesis are not identified. Secondly, the log likelihood function of the artificially constructed model has singularities under both the null and alternative hypotheses.The paper firstly examines the derivation of LM statistics in the case of non-nested hypotheses and shows that Atkinson's general test statistic, or Breusch and Pagan's result, can be regarded as an LM test if the parameters of the alternative hypothesis are known. The paper also shows that unless all the parameters of the combined models are identified, no meaningful test of the separate families of the hypotheses by the artificial embedding procedure is possible, and in the identified case an expression for the LM statistic which avoids the problem of the singularity of the information matrix under the null and the alternative hypotheses is obtained.The paper concludes that none of the artificially embedding procedures are satisfactory for testing non-nested models and should be abandoned. It, however, emphasizes that despite these difficulties associated with the use of artificial embedding procedures, Cox's original statistic (which is not derived as an LM statistic and does not depend on any arbitrary synthetic combination of hypotheses) can still be employed as a useful procedure for testing the rival hypotheses often encountered in applied econometrics.     

我国农业公共科研投资的配置:要素稀缺性技术诱导假说的检验

本文首先推导出了要素稀缺性技术诱导假说的数学形式，然后在此基本上充分考虑我国农业公共科研投资配置的“基数”行为，将现有的检验模型拓展为三元计量模型，并采用我国30个省市的综列数据进行了实证分析。研究结果显示，近年来，我国农业公共科研投资的分配基本上以节约耕地面积技术为主要投入方向，这与要素稀缺性技术诱导假说基本一致。这个结论的理论意义是可将技术诱导性假说扩展到不完全市场经济下的技术创新，其政策含义是我国农业公共科研投资分配的倾斜对象依然是以提高土地生产率为目标的技术创新。     

The effect of researchers' interdisciplinary characteristics on team innovation performance: evidence from university R&D teams in China

This study examines the effect of researchers' characteristics on the performance of R&D teams. Based on the multi-perspective of organization behavior and knowledge management, the authors adopt the framework of ‘Input-Process-Output’ regarding the process of the R&D team as knowledge creation. The theoretical model and corresponding hypotheses were tested empirically, drawing on a sample of 80 R&D teams from four universities in China. We concluded that knowledge communication, sharing, and integration play very important mediated roles in the knowledge creation process of the R&D team. Though researchers might have differing opinions on interdisciplinary research, they still tend toward communication and sharing their knowledge, experience, and viewpoints in the R&D process; this is an essential means for the achievement of knowledge integration. In order to achieve high innovation performance, management should pay attention to the process of knowledge communication, sharing, and integration.     

A Bayesian Multiple Comparison Procedure for Order-Restricted Mixed Models

A Bayesian hierarchical mixed model is developed for multiple comparisons under a simple order restriction. The model facilitates inferences on the successive differences of the population means, for which we choose independent prior distributions that are mixtures of an exponential distribution and a discrete distribution with its entire mass at zero. We employ Markov Chain Monte Carlo (MCMC) techniques to obtain parameter estimates and estimates of the posterior probabilities that any two of the means are equal. The latter estimates allow one both to determine if any two means are significantly different and to test the homogeneity of all of the means. We investigate the performance of the model-based inferences with simulated data sets, focusing on parameter estimation and successive-mean comparisons using posterior probabilities. We then illustrate the utility of the model in an application based on data from a study designed to reduce lead blood concentrations in children with elevated levels. Our results show that the proposed hierarchical model can effectively unify parameter estimation, tests of hypotheses and multiple comparisons in one setting.     

Innovation,agile project management and firm performance in a public sector-dominated economy: Empirical evidence from high-tech small and medium-sized enterprises in China

While agile project management has become increasingly important for high-tech small and medium-sized enterprises (SMEs), firm performance varies greatly due to companies’ different degrees of innovation capability and internal and external environmental dynamics. Drawing on the resource-based view – as well as innovation capability and agile project management theories – a comparative analysis was conducted of two high-tech SMEs. The results were used to develop a theoretical model based on six hypotheses. Empirical research was carried out that included measurement of key variables, data collection and analysis, validity and reliability tests, regression analysis, and structural equation modeling, which confirmed five of the six initial hypotheses. The proposed model incorporates different innovation capability roles, considers project agility enhancement of firm performance, and takes into account interactions between companies’ innovation atmosphere and environmental dynamics in a public sector-dominated economy (i.e., China). The results contribute to project agility management’s theoretical development and refinement by presenting new findings on innovation and environmental dynamics. The results also provide guidelines for project agility practices in high-tech SMEs in China, with the potential to improve these firms’ performance. Implications and limitations are also discussed.     

Time dependency of trade union membership

Event-history analysis is used to model the time dependency of two decisions: the decision to join a trade union, and the decision to leave a trade union. We formulate two hypotheses with regard to these two decisions and parametric regression models are used to investigate these hypotheses. The process of joining a trade union can be described by a decreasing rate, using a Weibull. For the process of leaving a trade union, we suggest an increasing rate that decreases after several years, a process best described by a log-logistic model.     

Spatial discounting and the gravity hypothesis

One of the central hypotheses in the study of spatial interaction behavior is the diminishing effect of distance on interaction. In this paper a parallel is drawn between two forms of this hypothesis: an external gravity interaction form which focuses directly on the empirically observable diminishing effect of distance on interaction, and an internal spatial discounting form which focuses rather on the diminishing effect of distance on spatial actors' preferences among interaction opportunities. The main result of the paper is to establish a connection between these two forms of the distance hypothesis. In particular, necessary and sufficient conditions on spatial actors' interaction preferences are established under which these two forms are equivalent, i.e., under which spatial discounting behavior is indistinguishable from gravity interaction behavior.     

Learning to bid in sequential Dutch auctions

We propose an agent-based computational model to investigate sequential Dutch auctions with particular emphasis on markets for perishable goods and we take as an example wholesale fish markets. Buyers in these markets sell the fish they purchase on a retail market. The paper provides an original model of boundedly rational behavior for wholesale buyers׳ behavior incorporating learning to improve profits, conjectures as to the bids that will be made and fictitious learning. We analyze the dynamics of the aggregate price under different market conditions in order to explain the emergence of market price patterns such as the well-known declining price paradox and the empirically observed fact that the very last transactions in the day may be at a higher price. The proposed behavioral model provides alternative explanations for market price dynamics to those which depend on standard hypotheses such as diminishing marginal profits. Furthermore, agents learn the option value of having the possibility of bidding in later rounds. When confronted with random buyers, such as occasional participants or new entrants, they learn to bid in the optimal way without being conscious of the strategies of the other buyers. When faced with other buyers who are also learning their behavior still displays some of the characteristics learned in the simpler case even though the problem is not analytically tractable.     

Private Environmental Activism and the Selection and Response of Firm Targets

Environmental activists are increasingly resorting to private strategies such as boycotts and protests focused on changing individual firms' behavior. In this paper, we examine activists' use of such "private politics" to engender firm compliance with activist objectives. We begin by developing a simple theoretical model of an activist campaign from which we develop a set of empirical hypotheses based on a set of observable features of firms. We test our hypotheses using a unique dataset of environmental activist campaigns against firms in the United States from 1988 to 2003. This paper fills an important need in the literature as one of the first empirical attempts to examine the private political strategies of activists and has important implications for the burgeoning literatures on industry self-regulation and the nonmarket strategies of firms.     

Encouraging knowledge sharing among employees: How job design matters

Job design is one of the most frequently researched practices in the Human Resource Management (HRM) literature, and knowledge sharing has become an important and heavily researched managerial practice. The links between these practices, however, have received little attention in the literature. We argue that job design matters to knowledge sharing for motivational reasons. Specifically, jobs contain characteristics that stimulate different kinds of motivation toward knowledge sharing, which have different effects on individual knowledge sharing behavior. We develop six hypotheses that unfold these ideas and test them on the basis of individual‐level data collected within a single firm. The hypotheses are tested in a LISREL model that confirms that job characteristics, such as autonomy, task identity, and feedback, determine different motivations to share knowledge, which in turn predict employees' knowledge sharing behaviors. © 2009 Wiley Periodicals, Inc.     

The generality/specificity issue in consumer innovativeness research

The purpose of the present study was to explore the role of personality in shaping consumer innovativeness by testing a model of the hierarchical relationships between a global (broad or abstract) personality trait, its domain-specific manifestation in a consumer context, and overt consumer behavior. A survey of 465 adult consumers measured global innovativeness, domain-specific innovativeness for two product categories (clothing and electronics) and self-reported purchase of new clothing and electronic items. Three hypotheses were tested. First, global innovativeness is more highly correlated with domain-specific innovativeness than it is with the purchase of new items. Second, domain-specific innovativeness is more highly correlated with the purchase of new items than is global innovativeness. Finally, the association between global innovativeness and new product purchase is mediated by domain-specific innovativeness. All three hypotheses were supported for both product categories.     

Investment and concern for relative position

Economists typically analyze individuals' market behavior in isolation from their nonmarket decisions. While this research strategy has generally been successful, it can lead to systematic errors when agents' nonmarket behavior affects their market choices. In this paper we analyze how individuals' investment behavior changes as a result of nonmarket behavior. Specifically, we analyze a model in which individuals must decide how to allocate their initial endowment between two random investments, where the returns are perfectly correlated across individuals for the first investment but independent across individuals for the second. We consider an environment in which men and women match, with wealthier individuals more successful in matching. We show how individuals' concern about relative wealth can affect their investment decisions, and we provide conditions under which individuals bias their investments either toward or away from the investment with correlated returns. A modification of the model is used to explain why agents' investments might exhibit a home country bias.     

农户分层信贷渠道选择行为及其影响因素分析——基于农村二元金融结构的实证研究

本文基于来自中国12省市的农户家庭信贷的微观数据,运用Probit模型实证分析了在正规金融渠道与非正规金融渠道相互独立和相互影响下,高收入与低收入农户信贷渠道选择行为的影响因素,解析中国农村二元金融结构特征下的农户分层信贷渠道选择行为。本文研究发现,家庭特征、经济特征以及金融生态环境对高收入与低收入农户信贷渠道的选择行为有着不同的影响。基于经验研究的基础上,提出中国二元金融结构特征下的深化农村金融改革的政策建议。     

我国银行业市场结构、效率及绩效关系研究

文章以国际上较流行的数据包络方法为测度工具,利用由CCR模型衍变而来的VRS及NIRS效率模型,对我国商业银行1997、1999、2001、2003年等4年的技术效率、规模效率、纯技术效率进行测算。根据所测得的效率数据,对有效结构假说和结构行为绩效假说进行实证检验,结果显示,效率和市场集中度与银行绩效正相关,而市场份额则与绩效负相关,该结论表明这两个假说都不适合中国银行业市场。同时,我们必须充分重视银行效率的提高。     

独立学院录取新生报到现状分析及对策研究

独立学院作为我国高等教育的重要组成部分,以其独特的办学模式,良好的教学效果受到社会各界的广泛关注。然而,独立学院的发展过程中仍然面临着多方面的问题,独立学院录取新生报到率偏低是制约独立学院健康良性发展的瓶颈之一。本文针对此类现象,以陕西省内的独立学院报到情况做一简要分析,提出相应的解决办法。