基于技术接受模型的网络口碑接受研究

在互联网比较普及的环境下,传统口碑借助网络媒介表现为新的形式——网络口碑。消费者接触网络机会大大增加,网络口碑对消费者购买行为的影响也越来越明显。商家为了利用网络口碑来促进销售,必须了解网络口碑传播过程。消费者网络口碑接受是网络口碑营销成功的前提。在分析技术接受模型理论和网络口碑文献的基础上,构建了基于TAM的网络口碑接受模型。该模型包括网络口碑接受影响因素的三个构面：个人特征构面;网络口碑感知构面;网络口碑来源构面。并对三个构面所包括的7个变量及其相关关系作了介绍。     

From Network Externalities to Broadband Growth Externalities: a Bridge not yet Built

Quantifying the impact of new technologies on economic activity has proven notoriously difficult. Indeed, it has taken decades of research to understand confidently the linkages between the advances in information, communications, and technology (ICT) spawned by the personal computer and aggregate economic activity. Today, the rapid deployment of broadband technology presents economists with this same challenge. In this paper, we explore the foundations of network and growth externalities that are associated with broadband deployment. We find that both theoretical and empirical models that better specify the micro-transmission paths in which broadband are likely to enhance economic output, employment and productivity are needed.     

Competition in Two-Sided Markets with Common Network Externalities

We study competition in two-sided markets with a common network externality rather those than with the standard inter-group effects. This type of externality occurs when both groups benefit, possibly with different intensities, from an increase in the size of one group and from a decrease in the size of the other. We explain why common externality is relevant for the health and education sectors. We focus on symmetric equilibrium and show that when the externality itself satisfies a homogeneity condition then platforms’ profits and price structures have some specific properties. Our results reveal how the rents coming from network externalities are shifted by platforms from one side to the other, according to the homogeneity degree. Prices are affected but in such a way that platforms only transfer rents from consumers to providers. In the specific but realistic case where the common network externality is homogeneous of degree zero, platforms’ profits do not depend on the intensity of the (common) network externality. This result differs from those of the two-sided models, which deal with standard positive inter-group network externality.     

A Model of Supplier Integration into New Product Development*

In many industries, firms are looking for ways to cut concept‐to‐customer development time, to improve quality, and to reduce the cost of new products. One approach shown to be successful in Japanese organizations involves the integration of material suppliers early in the new product development cycle. This involvement may range from simple consultation with suppliers on design ideas to making suppliers fully responsible for the design of components or systems they will supply. While prior research shows the benefit of using this approach, execution remains a problem. The processes for identifying and integrating suppliers into the new product development (NPD) process in North American organizations are not understood well. This problem is compounded by the fact that design team members often are reluctant to listen to the technology and cost ideas made by suppliers in new product development efforts. We suggest a model of the key activities required for successful supplier integration into NPD projects, based on case studies with 17 Japanese and American manufacturing organizations. The model is validated using data from a survey of purchasing executives in global corporations with at least one successful and one unsuccessful supplier integration experience. The results suggest that (1) increased knowledge of a supplier is more likely to result in greater information sharing and involvement of the supplier in the product development process; (2) sharing of technology information results in higher levels of supplier involvement and improved outcomes; (3) supplier involvement on teams generally results in a higher achievement of NPD team goals; (4) in cases when technology uncertainty is present, suppliers and buyers are more likely to share information on NPD teams; and (5) the problems associated with technology uncertainty can be mitigated by greater use of technology sharing and direct supplier participation on new product development teams. A supplier's participation as a true member of a new product development team seems to result in the highest level of benefits, especially in cases when a technology is in its formative stages.     

Incorporating uncertainty into a supplier selection problem

Supplier selection is an important strategic supply chain design decision. Incorporating uncertainty of demand and supplier capacity into the optimization model results in a robust selection of suppliers. A two-stage stochastic programming (SP) model and a chance-constrained programming (CCP) model are developed to determine a minimal set of suppliers and optimal order quantities with consideration of business volume discounts. Both models include several objectives and strive to balance a small number of suppliers with the risk of not being able to meet demand. The SP model is scenario-based and uses penalty coefficients whereas the CCP model assumes a probability distribution and constrains the probability of not meeting demand. Both formulations improve on a deterministic mixed integer linear program and give the decision maker a more complete picture of tradeoffs between cost, system reliability and other factors. We present Pareto-optimal solutions for a sample problem to demonstrate the benefits of the SP and CCP models. In order to describe the tradeoffs between costs and risks in an analytical form, we use multi-parametric programming techniques to more completely analyze the alternative Pareto-optimal supplier selection solutions in the CCP model. This analysis gives insights into the robustness of the solutions with respect to number of suppliers, costs and probability of not meeting demand.     

基于网络外部性的价值模块整合与兼容性选择

本文分析了价值模块的网络外部性特征，并基于网络外部性研究了价值模块整合过程中的兼容性选择和价格竞争行为。研究结果表明：当由进入厂商选择兼容度时，兼容性越高进入厂商的市场份额越大，并能够获得更高的市场价格；当由在位厂商选择兼容度时，兼容度增加将减少消费者的转移成本，使更多的模块需求商转向购买进入厂商的产品，减少了在位厂商的市场份额；当转移成本的兼容性敏感系数较低时，在位模块供应商能够获得更高的价格，而当转移成本对兼容性很敏感时，较高的兼容度将迫使在位模块供应商降低价格。价值模块的网络外部性加剧了模块供应商之间的竞争，进一步促进了价值模块整合和产业融合的过程。     

Incorporating Service Quality into Yardstick Regulation: An Application to the Peru Water Sector

Yardstick regulation requires the utilization of benchmarking, a valuable tool for improving public service delivery, especially in developing countries where inefficiencies translate into negative health impacts and social unrest. However, benchmarking must account for both the cost and the quality of service. Using data from 38 Peruvian water utilities (1996–2001), the paper evaluates quality-incorporated firm performance and identifies changes in efficiency, technology (frontier), and service quality. The study utilizes the nonparametric data envelopment analysis (DEA) model, a preference structure model, and the quality-incorporated Malmquist productivity index in evaluating firm performance; the study discusses their implications for regulating state-owned enterprises.      

PERSPECTIVE: Ranking the Technology Innovation Management Journals*

A citation analysis of the 10 leading technology and innovation management (TIM) specialty journals is conducted to gain insights into the relative ranking of the journals. The journals are ranked based on number of citations, citations adjusted for publication frequency, citations corrected for age, citations corrected for self‐citation, and an overall score. The top 50 journals in management of technology based on citation analysis are listed. Overall, the top 10 journals based on citation analysis are Journal of Product Innovation Management, Research Policy, Research‐Technology Management, Harvard Business Review, Strategic Management Journal, Management Science, Administrative Science Quarterly, R&D Management, IEEE Transactions on Engineering Management, and Academy of Management Review. The top 10 specialty journals in the technology innovation management specialty are Journal of Product Innovation Management, Research Policy, Research‐Technology Management, R&D Management, IEEE Transactions on Engineering Management, Technological Forecasting and Social Change, International Journal of Technology Management, Technovation, Technology Analysis & Strategic Management, and Journal of Engineering and Technology Management. It is found that many of the TIM journals, although focused on TIM, have additional foci based on traditional management disciplines. Each of the 10 leading TIM specialty journals is considered from the perspective of traditional management disciplines; how the journals relate to each other and the related implications of these findings are considered.     

Incorporating museum experience into an in-service programme for science and technology teachers in Taiwan

This study presented a course on preparing in-service teachers to learn communication technology education and how to integrate museum resources into their teaching. The course was organised and conducted by a teacher educator and museum educator together. Forty-two participants enrolled in this course, including 29 elementary school teachers, nine senior high school teachers, and four future teachers. During the course, data were collected and analysed to address issues and problems emerged from the study and to assess if it is appropriate to be suggested for further adoption. The data sources included reflective journals, lesson plans and peers’ comments, video-tapes, and final reports. Findings, issues, and problems were presented and discussed including a lesson developed through an interdisciplinary approach. To be concluded, a professional development programme that will make changes need to include three important components: student involvement, heterogeneity of the participants, and role models provided by teacher educators.     

A Model of Localized Mortgage Lending Behavior*

Loan administration costs and the costs of search for information about risk are found to be determinants of spatial interest rate differentials. These costs are independent of dollar loan size; therefore, rational lending policies can produce higher interest rates (or lower term to maturity) in low-income communities. But the premium (lower maturity) should be related to lower loan size and risk differentials. Public policy should be directed toward compiling and verifying an information bank which would allow lenders to search efficiently for information about risk. An empirical methodology designed to test for mortgage deficiency in minority areas was developed through case studies. This indicated the utility of specifying the supply and demand for mortgages at the neighborhood level of aggregation. Trends in neighborhood property values were identified as important and overlooked measures of lending risk. Further exploration of the hypothesis that Spanish-speaking areas are mortgage deficient is suggested by the cases.     

新兴网络安全技术——蜜罐技术的研究

本文介绍了新的网络安全技术蜜罐、延伸技术蜜网、蜜罐系统安全性、蜜罐技术的价值,通过使用蜜罐技术使网络安全防护由过去的被动遭受攻击变为主动出击,是网络更安全可靠。     

A Conjoint‐Hazard Model of the Timing of Buyers' Upgrading to Improved Versions of High‐Technology Products*

Understanding consumers' upgrading behavior is essential to product planning. Product managers would like to know what fraction of customers would upgrade to new and improved versions, and how fast. This paper presents a method to forecast the sales path of an improved version of a high‐technology product defined in terms of its price path and multiattribute product specification. The approach is potentially useful to managers to answer what‐if questions on the effects of alternative price paths and product specifications of the upgrade on when and what fraction of customers will upgrade. By doing such analysis for several product options under consideration, managers can choose the best feature specification and price path for the upgrade. The proposed approach integrates an individual‐level conjoint utility model with a hazard function specification. The first stage of estimation (i.e., conjoint analysis) measures individual‐level multiattribute utility functions, and the second stage (i.e., duration analysis) calibrates the coefficients of predictor variables of the time to upgrade via maximum likelihood. An illustrative application in the personal digital assistant (PDA) category confirms the predictive validity and potential usefulness of the proposed approach. Among the empirical findings are that higher upgrade costs and expectation of faster product improvement tend to delay buyers' upgrading decisions. The roles of other predictor variables such as product category characteristics, consumer characteristics, and peer pressure were also confirmed.     

Incorporating human resource management initiatives into customer services: Empirical evidence from Chinese manufacturing firms

The existing operations management literature has extensively investigated the associations between customer satisfaction and firm performance. However, how to improve customer satisfaction through employee empowerment, service reward, and service training has rarely been investigated. In this research, we tied human resource and service operations management to each other and examined the relationships among employee empowerment, service reward, service training, employee satisfaction, customer service and customer satisfaction based on empirical study of 214 Chinese manufacturing companies. Using structural equation modeling, we found that both employee empowerment and service training have significant impacts on employee satisfaction and customer service, while service reward only has significant impact on customer service. We also found that both employee satisfaction and customer service have significant impact on customer satisfaction. However, the impact of employee satisfaction on customer service is insignificant. The findings suggest that employee empowerment, service reward and service training are important considerations for operations managers to boost employee satisfaction and customer service, which in turn improve customer satisfaction. We provide empirical evidence that employee empowerment, service reward and service training play significant roles in increasing customer satisfaction in the context of manufacturing businesses.     

基于网络外部性的产品扩散模型分析

自巴斯模型问世以来,许多学者对其模型进行了大量的修正,但对具有网络外部性产品的扩散模型的研究却相对较少。本文在介绍巴斯模型和前人研究成果的基础上,建立消费者效用函数并引入愿付价格的概念,设定效用大于厂商定价的潜在需求者为实际需求者的总数,在此基础上建立了不具有网络外部性的修正扩散模型。然后依据消费者的实际感受价格随着累积采用者的增加而下降的网络外部性,提出了针对网络外部性产品的修正扩散模型。     

基于价值网络重构的企业商业模式创新

建构价值网络逐步成为企业商业模式创新的重要方式,但狭义的价值网络观对企业盈利机理的解释并未突破价值链将投入转换为产品的传统逻辑。本文从更广义的价值生态系统角度剖析网络价值交换逻辑和企业价值的实现机理,从网络重构出发分析了五种不同的商业模式创新路径。本文认为,受竞争压力与技术变迁的推动,网络组织的价值创造逻辑呈现颠覆性变化:顾客价值创造与企业价值实现的分离。这种分离导致许多企业即使实现了顾客价值最大化也未必产生收入,尤其面对互联网的免费经济趋势,企业只有重构价值网络、拓展新的收入源才能实现盈利并保证商业模式的稳定性。     

A Cash Flow Model of Rational Housing Tenure Choice*

This paper develops a model of housing costs in a cash flow framework. The cash flow approach allows both the consumption and investment aspects of tenure choice to be analyzed. By solving the model for the rental flow equivalent to any owning situation, we can determine whether or not a household would buy or rent from an economic perspective. The results are very sensitive to the household's income, the expected duration of occupancy, the mortgage interest rate, and inflation expectations. The results suggest that “rule-of-thumb” generalizations about tenure choice are often ill-founded, and that studies of tenure choice need to explicitly consider the interaction of income, taxes, length of occupancy and expectations.