基于DOA估计的认知无线网络频谱感知

认知无线电技术中频谱感知性能的优劣直接影响认知通信系统的性能。针对该特点提出了认知无线电网络中基于波达方向（DOA）估计的主用户频谱感知模型,即单主用户多次用户和多主用户多次用户的系统模型,选取基于特征分解的多重信号分类（MUSIC）算法分析两种模型的感知性能,包括虚警概率、漏检概率、最小总错误概率、算法复杂度等,获得了闭值表达式,最后在两种模型下对算法进行了仿真。仿真结果表明：各参数主要影响虚警概率,而漏检概率几乎不受影响,验证了方法的有效性。     

The End of Corporate Social Responsibility: Crisis & Critique,by Peter Fleming and Marc T. Jones

ABSTRACT

Purpose: Given the ever-increasing pressure put on sales organizations to improve performance, behave ethically and establish long-term customer relationships, this study seeks to better comprehend ethical leadership’s part in doing so. It proposes that perceived ethical leadership indirectly influences salesperson performance through trust in manager and ethical ambiguity.

Methodology/Approach: A survey of business-to-business salespeople was taken. Hypotheses are tested using structural equation modeling.

Findings: The results show that perceived ethical leadership influences salesperson performance through the mediating roles of trust in manager and ethical ambiguity. Salespeople’s perceptions of their supervisor’s ethical leadership behaviors positively impact their trust in manager and negatively influences their ethical ambiguity. In turn, trust in manager positively influences sales performance while ethical ambiguity negatively influences sales performance.

Research Implications: The results from testing the hypothesized model support mechanisms by which ethical leadership behavior may affect business-to-business salesperson job performance. It appears that ethical leadership works through ethical ambiguity and trust in manager to impact salesperson behavior performance, rather than directly impacting salesperson performance. Importantly the findings add to the literature an important consequence of ethical leadership, ethical ambiguity. This research likewise adds to the literature on role, and more specifically ethical, ambiguity by finding that reducing salesperson ethical ambiguity has a positive impact on salesperson behavior performance.

Practical Implications: This study finds that one important mechanism for reducing ethical ambiguity is for sales supervisors to practice ethical leadership. By reducing ethical ambiguity, sales managers can improve business-to-business salesperson performance. In addition, use of ethical leadership by sales managers can positively influence the business-to-business salesperson’s trust in manager, which subsequently leads to greater sales performance.

Originality/Value/Contribution: The results of this study add to our knowledge of ethical leadership by further developing its consequences. It also sheds light on a vastly under-researched construct, ethical ambiguity. Finally, it further validates the important role that trust in manager plays in the organization.     

A behavioral model of international channel relationships

Purpose: The main purpose of the study is to fill the existing gap in international relationship marketing (IRM) literature by developing and testing empirically a comprehensive conceptual model of firms’ relationship with their marketing channels in export markets. Whereas concepts such as power, conflicts, trust, commitment, and communication have been shown to be related to the economic success of interfirm cooperation in general and buyer–seller relations in particular, the need for a comprehensive model is often expressed in the literature.

Methodology/approach: The authors combine commitment-trust theory with resource-based and knowledge-based view perspectives to develop a new comprehensive conceptual model of firms’ relationship with their marketing channels in export markets. Data from 104 strategic business units in Israel was used to test the model empirically.

Findings: Notably, the model tested explained a higher percentage of the variance in performance. The findings suggest that noncoercive power enhances relationship quality (i.e., communication, trust, and commitment), which in turn improve cooperation and export performance. Conflict had a negative effect on relationship quality. In addition, cooperative conflict management strategies had a positive moderating effect on the conflict— relationship quality link, whereas competitive conflict management strategies had a negative moderating effect on the impact of conflict on relationship quality. Finally, the results suggest that there are strong positive relations between communication and trust and between trust and commitment.

Research implications: The research develops and tests empirically a conceptual comprehensive model of firms’ relationship with their marketing channels in export markets by including major performance drivers. The model incorporates conflict management strategies and combines commitment-trust theory with resource-based view (RBV) and knowledge-based view (KBV), an innovative combination with great explanatory potential. Based on the findings, there is sufficient support for using the suggested model as a new integrative behavioral model that explains channel relationships.

Practical implications: The results indicate that managers should use noncoercive power and cooperative conflict management strategies in order to positively affect relationship quality (i.e., communication, trust, and commitment), which in turn enhances cooperation and export performance.

Originality/value/contribution: The suggested research model presents a novel combination of existing relationship marketing (RM) knowledge with the limited IRM knowledge into a comprehensive IRM model. It includes new relationships beyond those studied before. Integrating and synthesizing results from a large body of conceptual and empirical literature led to the final model. Accordingly, it contributes elements of newness. First, the model includes major antecedents of performance. To the best of our knowledge, this is the most comprehensive model of firms’ relationship with their international marketing channels in export markets. Second, there are almost no studies investigating conflict management strategies neither in RM nor in IRM models. Accordingly, a contribution of this research is incorporating conflict management strategies within the model and analyzing their effects.     

Taiwanese Retailing: Market Analysis and Retail Branding Model Application

ABSTRACT

The Taiwanese retail market is in a highly competitive stage. In the past three decades, the Taiwan retail grocery market has experienced many developments and changes, and recently, has started to realize the importance of developing its own retail brand. Although the idea of retail branding is still new in Taiwan, the major hypermarket players have tried to build up their own brand image and create new own label products which differ from other competitors. This paper explores retail branding in the Taiwan hypermarket industry through macro/micro environment analysis and applying retail branding models to the Taiwanese retail market. The macro/micro environment analysis is undertaken by the two STEPs model and the retail branding model is created from Dawson's three levels model combined with previous studies and theories. The approach in this study involves literature reviews and secondary research in the field of the Taiwanese retail market. The outcome of this study is to highlight key issues that deserve further research.     

The Effects of Relationship Marketing on Share of Business: A Synthesis and Comparison of Models

ABSTRACT

Purpose: The article synthesizes the extensive empirical work on relationship marketing (RM) and compares the various conceptualizations to give a better understanding of the relational factors (i.e., characteristics of the business relationship) that improve a seller’s objective performance (i.e., share of business) in a business-to-business (B2B) services context. These conceptualizations, taken from the literature, link relational antecedents (i.e., communication, domain expertise, relational value, and mutual goals) to relational mediators (i.e., trust, satisfaction, commitment, relationship quality) to explore how they in turn affect a seller’s share of business.

Methodology/approach: All 4 models derived from the literature review were assessed using a dataset drawn from a survey of 948 client firm representatives of a Portuguese hotel chain in a B2B services context.

Findings: The best of the models in terms of model fit and prediction of share of business shows that only customer commitment directly drives a seller’s share of business, and simultaneous interrelated changes in customer trust and satisfaction, as well as customer perceptions of relational value, drive customer commitment, and so exert indirect effects on performance. The model that proposes that a seller’s performance is strengthened by simultaneous interrelated improvements in customer trust, satisfaction, and commitment (i.e., with these three mediators being conceptualized as a single, combined, higher-order mediator, termed relationship quality [RQ]) shows inferior fit. No combination of mediators (satisfaction, trust, or commitment) improves the seller’s objective performance over and above their individual effects (i.e., there are no synergistic effects).

Research implications: The literature review suggested four ways of modeling RM antecedents, mediators, and their effect on performance. Complex second-order constructs such as RQ lack explanatory power when predicting outcomes and mask the effects of individual relational mediators. Correct conceptualization is important, as conclusions vary drastically even with the same set of relational mediators and same dataset.

Practical implications: B2B service providers’ investments in RM will lead to improved share of business only if customer commitment is high or there is at least the potential to improve it. This requires an understanding of how valuable

the customer believes the relationship to be, and how the customer rates the relationship with the firm in terms of satisfaction and trust. A customer segmentation approach to relationship building and maintenance is advocated and detailed suggestions are put forward.

Originality/value/contribution: Apart from the work by Palmatier, the relationships between RM antecedents and mediators have not yet been examined simultaneously and findings are fragmented. The article provides a synthesis of this expansive literature. It contrasts different interplays between RM mediators, including their interrelationships as a higher-order construct, and explores possible synergy effects. Unlike previous work, this study focused on an objective measure of seller performance (i.e., share of business), whereas previous studies have tended to examine subjective measures, especially within the B2B context. Furthermore, four full models were assessed here, each of which included the antecedents to RM mediators and their links to objective performance.     

Selection,Training, and Performance Evaluation of Sales Managers: An Empirical Investigation

ABSTRACT

Despite the important role sales managers play in an organization, little empirical work has explored various facets of their jobs. The state of knowledge regarding this issue is woefully inadequate. To partially address this gap in the sales management literature, this paper reports the results of a study that investigated recruitment/selection, training, and performance evaluation practices vis-à-vis sales managers. Findings suggest that sales managers (irrespective of their company's size or primary market offering) generally rely on subjective recruitment and selection tools and techniques when recruiting sales management candidates, do not feel that any particular job activity is uniquely important or difficult to perform, and consider few evaluation criteria when assaying sales manager performance. Conclusions concerning the study's results are provided.     

Using the Analytical Hierarchy Process (AHP) to Construct a Measure of the Magnitude of Consequences Component of Moral Intensity

The purpose of this work is to elaborate an empirically grounded mathematical model of the magnitude of consequences component of “moral intensity” (Jones, Academy of Management Review 16(2),366, 1991) that can be used to evaluate different ethical situations. The model is built using the analytical hierarchy process (AHP) (Saaty, The Analytic Hierarchy Process, 1980) and empirical data from the legal profession. One contribution of our work is that it illustrates how AHP can be applied in the field of ethics. Following a review of the literature, we discuss the development of the model. We then illustrate how the model can be used to rank-order three well-known ethical reasoning cases in terms of the magnitude of consequences. The work concludes with implications for theory, practice, and future research. Specifically we discuss how this work extends the previous work by Collins (Journal of Business Ethics 8, 1, 1989) regarding the nature of harm variable. We also discuss the contribution this work makes in the development of ethical scenarios used to test hypotheses in the field of business ethics. Finally, we discuss how the model can be used for after-action review, contribute to organizational learning, train employees in ethical reasoning, and aid in the design and development of decision support systems that support ethical reasoning.     

Viewer Preference Segmentation and Viewing Choice Models for Network Television

Abstract

Individual viewing decisions have a direct impact on the media planning of television advertisers and, consequently, on the revenues of the major television networks. This paper represents an attempt to better understand these decisions. We use Nielsen people meter data to build a perceptual space for programs. That space is then used to develop models explaining viewers' decision to watch television and their choice of programming. The program-choice model is a clusterwise logit model which searches for segments with similar viewing preferences. A segment-level logit model is then used to model the on-off decision. These models can be used by advertisers and advertising agencies to understand the viewing audience better, and thus to help guide their advertising media placement decisions. The models can also help television networks design programs and program schedules that are more attractive to viewers (and thus advertisers).     

Advertiser Expectations of Agency Creative Product

ABSTRACT

The study reports the development and empirical testing of measures of advertiser expectations of agency produced creative product. This “applied creative,” professional, business-to-business service incorporates extensive process elements. Hence, two measurement models are developed: a traditional “unitary” model, and a dualistic model incorporating elements of process and outcome. The study demonstrates firstly that client expectations of this highly intangible, “applied creative” professional service can be empirically modelled, and secondly, that such measurement does exhibit dimensions of both outcome and process. This paves the way for subsequent modelling of consumer satisfaction or quality evaluation processes within this little explored service category.     

The Effect of Loss Leader Pricing on Restaurant Menus' Product Portfolio Analysis

Abstract

Drawing from economic and consumer behavior theories, this study outlines four theoretical reasons for menu item dependency, asserting that the assumption of item independency is violated in menurelated product portfolio analysis. Acase study of actual restaurant figures from two consecutive periods is analyzed. The data demonstrate how one such item dependency, namely loss leader pricing, affects the way in which the performance of several dishes is portrayed by two types of menu engineering models: the traditional, matrix-based approach and the multidimensional menu mix model. The results underscore theneed for a better menu product portfolio model, one that adequately addresses the interdependent nature of restaurants' product portfolio.     

Spreadsheet Modeling for the Classroom: The Value of Position on the Web Page

ABSTRACT

This article focuses on the authors' experience with a little-used quality of spreadsheets–the ability to construct spatial models. The article follows the development of a Web page layout model for classroom use. The model presents students with the problem of balancing out value of position, color, movement and other input factors in developing overall Web page strategy.     

The Political Economy of Multinational Conglomerates in Nigeria

Abstract

The paper analyzes the operations of the multinational conglomerates so as to determine the impact of their operations on the Nigerian economy, and especially on the manufacturing sector. It also investigated the possible problems hindering their operations. In an attempt to accomplish these objectives, we employed both survey and investigative research methods using regression modeling and estimation. The analysis of the secondary evidence indicates that, generally, the investment activities of conglomerates are found to positively and significantly relate to the output performance of the manufacturing sector of the Nigerian economy. The primary data analysis confirms this finding. On the other hand, they are seen to exploit natural resources and the workforce to the detriment of the country, and by repatriating all available funds and profits to overseas economies, the economy is starved of needed funds. However, their positive contributions to the Nigerian economy were seen to outweigh their negative contributions. This is particularly true of the manufacturing sector. Two perennial problems confronting the conglomerates in their investment activities relate to environmental hostilities and communal disturbances/social upheavals. Other problems relate to political risks, instability and impasse, and unstable economic climate.     

Exploring the Role of Product Development Capability for Transforming Marketing Intelligence into Firm Performance

ABSTRACT

Purpose: This study examines the role of product development capability for transforming marketing intelligence activities into firm performance on industrial markets.

Methodology/Approach: The authors apply structural equation modeling to analyze survey data from 342 industrial manufacturing companies.

Findings: Results reveal that sales integration and holistic macroeconomic view are particularly important features of the marketing intelligence capability on industrial markets to gain additional insights in order to develop products successfully. Results also reveal that product development capability transforms the marketing intelligence activities into firm performance on industrial markets.

Research Implications: This study offers new insights on marketing theory by extending and concretizing the concept of market orientation to a broader concept of the marketing intelligence capability for industrial markets. Further, this research reveals that the product development capability serves as a mediator to business performance.

Practical Implications: This study’s systematic and tangible outline of the dimensions of marketing intelligence and its link to the product development capability helps firms to better understand how to capitalize on market orientation’s potential values.

Originality/Value/Contribution: This research (a) reveals the relevant dimensions of marketing intelligence on industrial markets and (b) shows how the product development capability tranforms marketing intelligence activities into firm performance on industrial markets.     

Influences of Managerial Drivers on Export Sales Units’ Performance of Small and Medium-Size Enterprises

ABSTRACT

This report offers a contribution to the theories related to firms' export performance. Job satisfaction and behavioral and outcome performance of export managers have received attention in export literature. However, the relationships between export managers’ rewards system and the level of export managers’ morale with export managers’ job satisfaction, behavioral and outcome performance, and export sales units’ performance of small and medium-size enterprises have not thoroughly been examined, tested, or validated. A new model is developed based on export managerial psychology theory, which integrates two constructs, the export managers’ rewards and level of morale, as critical variables affecting export performance. The research findings suggest that four connected relationships in a PLS model are positive, significant, and substantial. Particularly, managers’ financial and nonfinancial rewards influence managers’ level of morale, which in turn affects managers’ behavioral performance, and managers' behavioral performance influences managers’ outcome performance, which, finally, affects firms’ export performance.     

Online Privacy Policies and Diffusion Theory Perspectives

ABSTRACT

The use of the Internet and related technologies in data sharing and new product development, which essentially serves as a foundation for the management of data flows for strategic IT, are rapidly expanding. The innovation clusters and frameworks to characterize recent e-commerce sites' privacy policies to ensure confidentiality of personal information have been under increasing academic inquiries. An application of Rogers' (1995) diffusion of innovation or technology concepts as applied to the Internet is used to develop several models of e-commerce related security and privacy concerns. One possible solution discussed is the strategic leveraging of a consortium model, providing for governmental assurances of privacy and security. Unfortunately, the current e-commerce model has no governing body to represent the consumer and e-tailer in terms of privacy and security issues so critical to the continued growth and success of the Internet.     

The Hierarchy of Internet Communication Effects: A New Paradigm for Understanding Internet Promotion

ABSTRACT

The applicability of the traditional marketing models to online marketplaces has been of great interest since the advent of the Internet. This study examines the applicability of the Hierarchy of Communication Effects model to the online auction environment through the use of proprietary archival data. The results provide support for a new model, which we call the Hierarchy of Internet Communications Effects, which is applicable to online environments. The Hierarchy of Internet Communications Effects is analogous to other hierarchical effects models from consumer behavior literature known as the learning hierarchies. We provide suggestions to promote products or services at different stages in the Hierarchy of Internet Communications Effects; several implications and limitations are discussed, and future research is suggested.     

An Empirical Examination of Institutional Investor Preferences for Corporate Social Performance

This study investigates the pattern of institutional shareholding in the U.K. and its relationship with socially responsible behavior by companies within a sample of over 500 UK companies. We estimate a set of ownership models that distinguish between long- and short-term investors and their largest components and which incorporate both aggregated and disaggregated measures of corporate social performance (CSP). The results suggest that long-term institutional investment is positively related to CSP providing further support for earlier studies by Johnson and Greening (1999, Academy of Management Journal 42, 564–576) and Graves and Waddock (1994, Academy of Management Journal 37, 1034–1046). Disaggregation of CSP into its constituent components suggests that the pattern of institutional investment is also related to the form which CSP takes. Investigation of the impact of investment screens on the selection of stocks suggests that long-term institutional investors select primarily through exclusion, rejecting those firms which have the worst CSP.     

Shocks to Malaysia's Exports: Temporary or Permanent?

ABSTRACT

The export sector has been the primary source of growth and development in the Malaysian economy. However, a high degree of openness as well as dependence on a few product categories have rendered Malaysia vulnerable to external export shocks. In this paper, we use unit root testing to demonstrate that exogenous export shocks can have either a temporary or a permanent effect on the Malaysian domestic economy depending on their country of origin. The resulting merits of country-specific export policies are discussed.     

Environmental context and marketing planning processes

The traditional model of marketing planning assumes that the process by which organizations take planning decisions is constant with respect to context. Organizational environment, internal context, performance and distinctive competency affect marketing planning only as information inputs for the planning process, not as influences on the choice of process. However, rapid change in environments, in competitive patterns and in market responses all demand action from organizations. Intuitively, we expect that rapid environmental change will require a faster planning process, and that increasing environmental complexity requires more careful deliberation. The marketing planning model does not accommodate such intuition. This paper outlines the case for rethinking marketing planning models, and develops a conceptual framework through which the impact of environmental context on marketing planning processes can be effectively examined.     

Expectations and Satisfaction in Channel Member Relationships in the Victorian (Australia) Fruit Industry

Abstract

The paper reports findings of research into the dynamics of customer satisfaction formation amongst fruit producers and their distribution channel(s), within the economically important northern Victorian (Australia) fruit industry. The paper suggests reasons why previous approaches to the issue of satisfaction in channel member relationships, which typically utilize constructs of ‘economic’ and ‘non-economic’ satisfaction, may usefully be supplemented by application of the ‘disconfirmation of expectations’ model. The research actually tests a modification of the traditional disconfirmation model that incorporates dimensions of ‘outcome’ and ‘process’ at the levels of expectations, performance and disconfirmation—a ‘dualistic’ model. This had previously been tested only in a radically different business-to business-context, that of advertising creative services. The findings suggest that satisfactory measurement of growers' expectations can be achieved. They also suggest that the disconfirmation model does appear to apply in this previously untested service context, whether unitary measures of expectations and performance, or the dualistic interpretation of expectations/performance, are utilized.