反倾销产业损害认定的理论与实证研究——基于COMPAS模型的分析

现有产业损害认定方法不能有效区分倾销因素与非倾销因素对相关产业影响。并易受人为主观因素干扰。为了克服这些缺陷.本文通过将倾销边际变量纳入近年来发展的COMPAS模型.从理论上揭示了进口倾销行为如何通过价格机制对我国进口竞争行业的产出、价格以及收益等指标产生影响,然后基于2001年我国铜版纸市场有关数据,应用修正的COMPAS模型就进口倾销对我国铜版纸行业的损害情况进行了实证模拟.模拟结果表明。仅在2001年,进口铜版纸倾销行为使国产铜版纸的价格大约下跌了10.3%,产出下降了23.3%,全行业收益减少了31.2%,行业就业人数减少了34.9%,行业设备利用率下降了12%。本研究不仅提供了一个科学评估与预测反倾销产业损害的方法,也为我国反倾销措施的制定提供了一个理论与现实依据。     

企业商业模式创新的实现方式与演进机理——一种基于价值链创新的理论解释

本文从价值链创新的理论视角对企业商业模式创新的实现方式进行清晰、系统的解释，并根据企业商业模式的不同形成方式对其进行系统分类。此外，本文还对企业商业模式创新的动力及演进机理进行深入的探讨。通过本文的分析．可以了解企业商业模式创新的机理，同时也能够更好地指导我国本土企业进行适当的、有效的企业商业模式创新，从而在激烈的国际竞争中获得较强的竞争优势。     

成员参与动机对虚拟社区商业模式的影响

本文研究探索了社区成员参与动机对社区商业行为的影响,以及不同参与动机对于社区认可以及社区经营影响的差异。在研究中,将社区成员参与动机分为信息性、工具性、社会强化、社会化联系和娱乐性五种类型。社区商业模式则包括社区交易佣金、广告和社区会员费等三种模式。通过对猫扑、天涯论坛等综合性虚拟社区成员的研究发现。成员的参与动机对虚拟社区商业模式有显著的影响作用。而且.成员的参与水平对该影响作用有一定的中介作用。本研究的结论对于目前虚拟社区的经营实践有一定的借鉴意义.为未来虚拟社区的研究做了铺垫。     

风险企业薪酬策略研究

本文讨论了基于人员流动研究风险企业薪酬激励的重要性，通过对Paul Oyer的薪酬策略数学模型的分析，讨论了该模型的缺陷并进行了改进，探讨了风险企业的所有者如何选择最优的薪酬策略模式，在保证对员工进行有效的激励的前提下，达到所有者权益最大化的目标。     

A strategic-tactical model for the supply chain design in the delocalization context: Mathematical formulation and a case study

In this paper, we propose a mathematical model for the design of supply chains in the delocalization context. Our main objective is to develop a strategic-tactical supply chain design model that integrates all the relevant components that characterize the delocalization problem. We adopt the activity based approach to model the problem and we focus on the logistic decisions of activity location, technology choice, supplier selection, etc., and the financial decisions of transfer pricing, transportation costs allocation, etc. The mathematical formulation is illustrated by a case study from the automotive sector. A comparison between the model solution and the real decisions is used to prove the applicability and the utility of the proposed model.     

Queueing models for full-flexible multi-class call centers with real-time anticipated delays

In this paper, we consider two basic multi-class call center models, with and without reneging. Customer classes have different priorities. The content of different types of calls is assumed to be similar allowing their service times to be identical. We study the problem of announcing delays to customers upon their arrival. For the simplest model without reneging, we give a method to estimate virtual delays that is used within the announcement step. For the second model, we first build the call center model incorporating reneging. The model takes into account the change in customer behavior that may occur when delay information is communicated to them. In particular, it is assumed that customer reneging is replaced by balking that depends on the state of the system in this case. We develop a method based on Markov chains in order to estimate virtual delays of new arrivals for this model. Finally, some practical issues concerning delay announcement are discussed.     

Optimal Replacement Under Variable Intensity of Utilization and Technological Progress

We presented two modifications of the traditional model of optimal replacement of capital equipment. Starting from cost-minimization over an infinite horizon, we introduced a variable intensity of utilization in the traditional replacement model to explain functional degradation, i.e., the reduction in utilization intensity as equipment ages. Next, we demonstrated that when technological progress is ongoing, the basic model of optimal replacement can give erroneous results due to neglecting the opportunity cost of foregone technological progress at the time of replacement.     

Mechanisms,organisms and social systems

To think about anything requires an image or concept of it, a model. To think about a thing as complex as a social system most people use a model of something similar, simpler and more familiar. Traditionally, two types of models have been used in efforts to acquire information, knowledge and understanding of social systems: mechanistic and organismic. But, in a world of accelerating change, increasing uncertainty and growing complexity, it is becoming apparent that these are inadequate as guides to decision and action. The growing number of social crises and dilemmas that we face should be clear evidence that something is fundamentally wrong with the way we think about social systems. In this paper we describe and try to explain the deficiencies of the two traditional ways of thinking about social systems. We then develop a third type of model, one we believe does not suffer from these inadequacies, a social system model which seeks to penetrate beyond the nature of machine and organisms to understand social systems in their own right.     

The business model in entrepreneurial marketing: A communication perspective on business angels' opportunity interpretation

Entrepreneurial marketing has emerged as a recent perspective within the marketing field, taking the challenges and characteristics of small firms and founding teams into account. Specifically, in the early stages of entrepreneurial marketing, besides potential customers a variety of other stakeholders tend to be in the center of attention. Among these stakeholders, business angels as early-stage investors represent a vital target group. In this paper, we aim to shed light on entrepreneurial marketing in the early phases of new venture creation, in which entrepreneurial firms have an inherent need to market the value of a business opportunity toward potential investors. In particular, we contribute to the literature by introducing the business model as a narrative device for the marketing of early-stage new ventures toward potential business angels. In this regard, the business model is suggested as playing a critical role through making the inherent economic value of a technology explicit. Building on narrative theory, we investigate the role that the business model plays in the decision-making process of 17 business angels. Based on our findings, we propose a model that links the business model to a business angel's interpretation of an investment opportunity and discuss implications for theory and practice.     

Consumer privacy in oligopolistic markets: Winners,losers, and welfare

Motivated by the unprecedented availability of consumer information on the Internet, we characterize the winners and losers from potential privacy regulation in the context of four commonly-used oligopoly models: a linear city model, a circular city model, a vertical differentiation model, and a multi-unit symmetric demand model. We show that while there are winners and losers as a result of privacy enforcement, the parties who stand to benefit and the parties who stand to lose, as well as whether social welfare is enhanced or diminished, largely depends on the specific economic setting under consideration.     

Valuing Retail Shopping Center Lease Contracts

In this article we set up a real option model of retail shopping center leases. The model incorporates the effects of stochastic sales externalities and the possibility of tenant default, and in the presence of these effects, we derive and solve a partial differential equation that can be used to price a lease transaction. The model then sums across all tenants to determine the value of the shopping center. The model generates a number of new predictions, including why a Jorgensonian user cost of capital may overestimate shopping center values, why the general industry practice is to ignore percentage rent payments and tenant default risk in commercial mortgage underwriting and why shopping center owners may not act opportunistically as most observers seem to think they do.     

利润区指数模型:企业利润区定量分析范式

本文基于过程管理的研究思路,提出企业运营的内因势能和弹性势能概念,并根据企业运营过程中的势能状况来界定企业的利润区,选定关键环节的具体评价指标体系,建立了企业利润区指数模型,并采用超越对数方法对指数模型的具体函数形式进行逼近,最后利用上市公司生产经营的真实数据进行实证研究。结果进一步印证了利润区指数模型用于企业利润区定量分析的合理性。本文给出了一种企业利润区分析的定量研究新范式。     

转型背景下中国企业基于社会资本的知识管理研究

本文研究和分析了企业外部社会资本和内部社会资本在知识管理中所发挥的作用,论述了处于不完善的制度环境和组织制度下的中国企业如何突破制度限制以应对全球化竞争和知识经济挑战等问题。在此基础上,提出了概念模型和理论假设。并利用607家中国企业的有效数据对假设进行了检验,实证结果表明:内外部社会资本的构建有利于我国企业在制度环境不完善背景下的知识管理,有利于企业通过外部知识的获取和知识整合来构建自身的竞争优势。     

A model to analyse students’ cooperative idea generation in conceptual design

In this article we focus on the co-creation of ideas. Through the use of concepts from collaborative learning and communication theory we suggest a model that will enable the cooperative nature of creative design tasks to emerge. Four objectives of the model are stated and elaborated on in the paper: that the model should be anchored in previous research; that it should allow for collaborative aspects of creative design to be accounted for; that it should address the mechanisms by which new ideas are generated, embraced and cultivated during actual design; and that it should have a firm theoretical grounding. The model is also exemplified by two test sessions where two student pairs perform a time-constrained design task. We hope that the model can play a role both as an educational tool to be used by students and a teacher in design education, but primarily as a model to analyse students’ cooperative idea generation in conceptual design.     

A distribution-free newsvendor model with balking and lost sales penalty

In this paper, we extend the classical single period newsvendor model in an environment of customer balking, which occurs when customers are reluctant to buy a product if its available inventory falls below a threshold level. Since failure to make a sale usually results in a cost penalty, in addition to the opportunity cost of lost sales, we incorporate such costs in our model. Furthermore, we extend our model to include fixed ordering costs. Our analysis is based on the assumption that only the mean and the variance of the distribution of demand are known, without assuming any specific distributional form. We illustrate the concepts developed here through simple numerical examples and demonstrate the effectiveness of our approach by solving a set of 1000 randomly generated test problems.     

What difference does dynamics make? The case of digital cameras

When the well-known BLP model is applied to products with rapid technological changes and declining prices it tends to yield implausible results. A sequence of increasingly sophisticated dynamic demand models, most recently Gowrisankaran and Rysman (2009, hereafter GR), have been developed to overcome these problems. We apply both models to new data on the US digital camera market. In addition, we demonstrate that the GR model can be specified as a BLP model plus an additional set of terms. This suggests that a dynamic model can be estimated as a BLP model plus a non-parametric function which is less computationally demanding. As a first step to implementing this semi-parametric approach we estimate a BLP model augmented with age as a proxy for the non-parametric component. We find that demand for digital cameras is more elastic when demand dynamics is accounted for in both the dynamic model and the BLP model with the age proxy. This suggests that the market is more competitive though the results are consistent with firms engaging in intertemporal price discrimination. Merger simulations predict the lowest price and quantity changes using the GR model.     

基于判别分析的商业银行个人信用风险评价模型研究

本文首先通过筛选个人信用风险评级指标体系准则层和目标层的指标,其次通过Fisher判别分析模型构建了基于某银行实际样本的贷款临界值模型。并用样本值加以验证,结果发现判别分析可以最大限度地利用样本信息。     

An EOQ lot sizing model with random supplier capacity

This paper presents a general formulation of the inventory lot sizing model with random supplier capacity under the EOQ framework. For a general capacity distribution, we show that the expected cost per unit of time is a unimodal function and pseudo-convex in the ordering quantity. Moreover, we derive some simple data-dependent bounds for both optimal lot size and expected cost per unit of time. In order to illustrate the general model, three types of distributions for the random capacity are analyzed as special cases. These are the uniform, exponential, and truncated normal distributions. For each of these distributions, we find that the maximum cost penalty of using the EOQ lot size instead of the optimal one is almost negligible (not greater than 0.52%, 1.81%, and 0.91% for the uniform, exponential, and truncated normal distributions, respectively). In addition, we extend the general model to allow for the presence of defective units in the quantity received from the supplier. It is shown that this extra randomness does not affect the optimal ordering policy for the original model.     

关于硬质合金格利森铣刀盘的设计与制造问题

本文首先给出了硬质合金格利森铣刀盘的设计原理和相应几何模型;然后侧重硬质合金格利森铣刀盘的制造原理和相应的几何模型的研究;最后以外刀为例验证了本文所提供的整个模型和方法的可靠性。因此本文为加工弧齿锥齿轮的硬质合金格利森铣刀盘的设计、制造提供了可靠依据。