网络品牌虚拟价值链构建实证研究

本文梳理了西方品牌价值和虚拟价值链模型等研究文献,为了便于将实体品牌价值链模型应用于网络,对国内主要网站作了调研,对虚拟品牌价值链的指标和模型作了修正.并通过实证分析对网络品牌内部变量进行了检验,对修正后的虚拟品牌价值链模型作了验证.本文的研究拓宽了品牌价值链的研究视角和领域,使品牌价值链模型的应用范围由传统实体品牌向网络品牌延伸.     

工资性收入对广西农民收入的贡献计量分析

该文利用计量经济模型，分析广西农民工资性收入、家庭经营纯收入和其他非生产性收入对人均纯收入的影响，并根据需要引入了虚拟变量。     

基于季节变换下的国内生产总值对棉布销售量的影响分析

国内生产总值对棉布销售量存在一定程度的影响,季节变换下棉布销售量也各有不同。为了研究国内生产总值在四季变换下对棉布销售量的影响,本文通过将国内生产总值、季节、棉布销售量这三个因素紧密结合,在计量经济学的视角下建立了包含一个定量变量、一个多分定性变量的虚拟变量回归模型。     

中国与西班牙双边贸易潜力测算——基于引力模型的实证分析

本文基于2000~2013年25国的面板数据,采用贸易引力模型对中国与西班牙两国双边贸易潜力进行估测,并且引入多个金融变量与虚拟变量对基础模型进行扩展。得出以下主要结论:首先,中西两国双边贸易潜力指数随着时间只有轻微波动无显著的变化,这说明两国并未着重于提高双边贸易合作;其次,潜力值始终在数值1上下浮动,表明潜力仍未全部实现,尚有较多贸易上升空间;最后,本文总结了面板数据回归过程,对研究的局限性进行了说明,并对未来的研究提出相关建议。     

南北方地区生产总值差异分析

鉴于我国南北方经济发展的不平衡现象,本文以2004年各地区生产总值为数据进行分析,引入地区位置作为虚拟变量,通过进行模型回归找出南北方国内生产总值的差异。     

外国直接投资对我国进出口规模的影响——基于虚拟变量、协整及格兰杰检验的实证研究

本文根据1980-2004年我国出口、进口和外国直接投资的数据,利用虚拟变量、单位根检验、协整检验、格兰杰检验和建立回归模型等方法,就外国直接投资对我国外贸进出口规模的影响进行了实证研究和度量,得出结论:外国直接投资对我国的进出口规模具有促进作用,1996年后随着利用外国直接投资结构的不断优化和调整,在促进外贸增长的贡献效用上也有了大幅度提升,最后提出了相应的政策建议。本文的创新点在于使用虚拟变量衡量定性因素,在建模前进行了充分的前提检验,以保证模型是稳定和有效的。     

我国林产品贸易中刨花板进口贸易影响因素分析

运用Eviews对我国林产品贸易中刨花板进口贸易的影响因素进行多元线性回归分析,并进行模型检验与修正。最后发现：替代品数量、汇率,以及关税变化为代表的政策虚拟变量对刨花板进口量有显著影响,而GDP、建筑业总产值、刨花板生产量等解释变量被剔除。     

中国与东盟贸易引力模型研究

以中国与东盟的双边贸易流量为研究对象,应用研究贸易流量的模型,构建出适合双边特色的贸易引力模型;采用面板数据并添加其它36个重要贸易伙伴国作对比,分别将东盟看作一个整体和各自独立变量进行回归。实证结果显示,中国与东盟的传统影响因素,如经济规模、人均发展水平、距离等变量仍发挥着重要的影响力,而虚拟变量WTO成员国、华人所占比例等因素也不容忽视。     

内蒙古住宅房地产价格影响因素实证分析——以政策因素作为虚拟变量

对于近年来内蒙古地区房价的过快增长，实证分析了影响内蒙古房价的因素。本文利用内蒙古自治区1997-2012年的年度数据建立含有政策虚拟变量的多元线性回归模型，定量地分析了内蒙古住宅房地产价格的主要影响因素以及加入房地产政策作为虚拟变量，分析其对房地产价格的影响程度。结果指出，对于内蒙古房地产价格的影响起主要作用的是城镇居民人均可支配收入，且2005年以及2008年前后的房地产政策、宏观经济现象对房地产价格有显著性影响。     

中国开放式基金收益及其波动性的周内效应研究

了解基金收益及其波动性是否存在周内效应对投资者非常重要,投资者可以利用收益及其波动性的变动信息调整投资组合,增加投资收益。运用均值方程含有虚拟变量的GARCH(1,1)模型和条件方差方程含有虚拟变量的修正的GARCH(1,1)模型,我们分别对2003年6月1日至2005年8月18日期间中国开放式基金收益的周内效应和收益波动性的周内效应进行实证研究,结果显示,在研究期间内样本基金收益及收益的波动性在周三这一天显著不同于其他交易日,即存在“周三效应”。     

Relevance of inflation-adjusted earnings measures in the security-valuation process

This study is an extension of several recent studies that have found inflation-adjusted disclosures to have no announcement impact in the stock market. A traditional share-price model is employed in a cross-sectional framework to test whether the information required by SFAS No. 33 is impounded in the valuation process prior to disclosure or whether the inflation data offer no significant contribution to the valuation process. The results suggest that neither current-cost earnings nor constant- dollar earnings provide incremental information in the share-price specification, although the inflation data are related to other variables appearing in the model. Thus, the inflation data may provide information important in ascertaining the variables explicitly appearing in the valuation model. This rather weak relationship, however, in combination with previous findings of no announcement effect, suggests that the contribution of inflation reporting to shareholders in valuing securities is, at best, marginal.     

自组织FPNN在宏观经济预测中的应用

论文针对经济预测通常表现为复杂的非线性这种特性,提出了一种基于自组织过程神经元网络(FPNN)和改进的BP神经网络建立的经济预测模型方法。自组织过程神经元网络(FPNN)由输入层、竞争层和输出层组成。FPNN筛选出对因变量(网络输出)最有影响作用的变量(自变量)之后作为改进的BP算法网络的输入节点,再用进行学习。该模型不仅克服了时间序列预测模型只能进行线性预测的不足,而且还避免了传统神经网络的固有缺陷。以2001年到2004年国内生产总值作为预测分析样本,并对预测结果和实际值进行了比较分析,结果验证了该方法的有效性。     

The internationalization process of Brazilian software firms and the born global phenomenon: Examining firm,network, and entrepreneur variables

This paper examines the born-global phenomenon in the context of an emerging country, Brazil. A literature review was conducted in order to develop an integrative model of the phenomenon under study. Three sets of internal variables were identified in the literature which seemed to explain why a firm would follow a born global, rather than a traditional, internationalization process: firm, network, and entrepreneur variables. The final conceptual model was tested in a Brazilian sample of 79 software firms, of which 35 followed the born-global process of internationalization and 44 followed the traditional process. Logistic regression was used to test the research hypotheses. Results showed that certain firm and entrepreneur variables seemed to be associated to the type of internationalization process chosen by these firms. Network variables did not significantly differentiate the two groups.     

Determinants of mail‐survey response: Survey design factors and respondent factors

With the use of a hierarchy‐of‐effects model, the decision to complete a mail survey was modeled as a process moving through several stages. A set of variables thought to influence the survey‐completion decision process was examined. These variables include survey design factors, which were manipulated by the researchers, and respondent factors, such as attitudinal and personal constructs. Based on the research findings, the hierarchy‐of‐effects model is an appropriate way to model the mail‐survey‐response process. The data indicate that among the survey design factors included in the study, the monetary incentive had the most effect on the decision process, with a pervasive impact throughout the process. Importantly, respondent factors such as attitude toward research were of critical importance in moving respondents through the survey‐response process. Research into the response‐rate phenomenon is likely to benefit by considering how both survey design and respondent factors affect specific stages of the response process and enhance participation in surveys. © 2002 Wiley Periodicals, Inc.     

A process model of entrepreneurial venture creation

The process model of entrepreneurial venture creation developed in this paper is based on interviews with entrepreneurs who started twenty-seven business in a range of industries in upstate New York. The venture creation process described here is an iterative, nonlinear, feedback-driven, conceptual, and physical process.The model includes internally and externally stimulated opportunity recognition, commitment to physical creation, set-up of production technology, organization creation, product creation, linking with markets, and customer feedback. For analytical convenience, the process has been divided into the opportunity stage, the technology set-up and organization-creation stage, and the exchange stage. Business concept, production technology, and product are respectively the core variables representing the three stages.Entrepreneurs introduce differing amounts of novelty at each core variable during venture creation, and the varying amounts of novelty qualitatively distinguish one kind of entrepreneurship from another.For the researcher, the model suggests a better method for specifying samples of entrepreneurial firms. It shows how studies on the context of venture creation can be more specific, and proposes that novelty at the core variables be operationalized as a step toward defining the entrepreneurial content of ventures.For the prospective entrepreneur, the model will serve as a useful road map. It will alert the entrepreneur to the strategic issues at each stage in the venture creation process, particularly when introducing significant novelty at any of the core variables.     

A Test of a Person -- Issue Contingent Model of Ethical Decision Making in Organizations

Despite the existence of a large number of models to explain the ethical decision-making process, rarely have the models been tested. This research validated the use of such models by showing that both issue-contingent variables and individual characteristics affect two commonly-proposed model components: i.e., moral judgment and moral intent. As proposed by Jones' (1991) ethical decision-making model and elaborated on by the author, the main effect of an issue-contingent variable, social consensus, and a closely-related variable, seriousness of consequences, influenced both moral judgment and moral intent.Many ethical decision-making models also argue for the inclusion of individual characteristics in the decision-making process. This study proposed and found that the individual characteristics of rule orientation and denial of responsibility influenced moral judgment and moral intent, respectively. However, contrary to some models, interactions between issue-contingent variables and individual characteristics were insignificant relative to the main effects variables. The relationships found have implications for future model testing, as well as for practising managers.     

动态最优控制模型在广告业的应用综述(中)

本文介绍了动态最优控制模型在广告领域的研究进展,主要包括Sethi在1977年总结之后的模型发展。这些模型要回答的基本问题是,如何确定一个或一组相互竞争的企业的最优广告支出和其他可能随时间变化的利益相关因素。模型的最优化描述了这些变量如何转化为销售额,进而转化为利润。本文有两个主要目的。一方面,整理了早期综述文献中已经提到过的领域中产生的新贡献。另一方面,探讨了1977年以来广告学领域出现的新的研究方向。考虑到文章长度,本文将分成上中下三篇刊载。本篇主要介绍了销售—广告响应模型;耐用品的累积销售额模型;广告过程中具有多个状态变量的广告模型。     

New Technology Adoption,Business Strategy and Government Involvement: The Case of Mobile Commerce

SUMMARY

This research focuses on understanding how business organizations are likely to adopt mobile commerce (m-commerce) technology. Mobile commerce adoption represents a complex process that draws in variables external to the firm such as the environment in which the business operates and the government involvement, as well as variables internal to the company such as its business strategy and its organizational culture. A model is formulated and several research propositions are offered. They will help understand the mobile commerce applications adoption process. Implications of this model and further research avenues are discussed.     

A note on the long rate in factor models of the term structure

In this paper, we consider factor models of the term structure based on a Brownian filtration. We show that the existence of a nondeterministic long rate in a factor model of the term structure implies, as a consequence of the Dybvig–Ingersoll–Ross theorem, that the model has an equivalent representation in which one of the state variables is nondecreasing. For two‐dimensional factor models, we prove moreover that if the long rate is nondeterministic, the yield curve flattens out, and the factor process is asymptotically nondeterministic, then the term structure is unbounded. Finally, we provide an explicit example of a three‐dimensional affine factor model with a nondeterministic yet finite long rate in which the volatility of the factor process does not vanish over time.     

Influences in Ethical Dilemmas of Increasing Intensity

This study attempts to extend the literature in ethics research by developing and testing a model of an individual's ethical system which identifies the sources of influence on the decision process. The model is developed from an interdisciplinary literature review and includes six subsystems or spheres that exert influence on an individual: the workplace, family, religion, legal system, community, and profession. The study also examines the role of materiality in the decision-making process.Using this model, empirical tests identify the spheres that exert the most influence on the decision-maker facing an ethical dilemma. In addition, the relative importance of the spheres and the interaction among the spheres is examined. Findings show that: (1) individuals rate variables at different levels of importance as the materiality of the breach changes and (2) the spheres that are considered most important for minor ethical breaches are different than the spheres considered most influential in a major ethical situation.Exploratory factor analysis suggests that the variables representing the spheres can be summarized by three factors. Further, it indicates that these factors change with materiality.