Group Decision Support Using Fuzzy Cognitive Maps for Causal Reasoning

Cognitive maps have been used for analysing and aiding decision-making by investigating causal links among relevant domain concepts. A fuzzy cognitive map (FCM) is an extension of a cognitive map with the additional capability of representing feedback through weighted causal links. FCMs can be used as tools for both static as well as dynamic analysis of scenarios evolving with time. An FCM represents an expert's domain knowledge in a form that lends itself to relatively easy integration into a collective knowledge base for a group involved in a decision process. The resulting group FCM has the potential to serve as a useful tool in a group decision support environment. An appropriate methodology for the development and analysis of group FCMs is required. A framework for such a methodology consisting of the development and application phases is presented.     

Tax Policy and Entrepreneurship: New Time Series Evidence

Have tax policies affected entrepreneurial activity in the U.S.? We extend the time series literature on this topic by using more recent data and modern econometric techniques to examine the importance of federal income, payroll, capital gains, corporate income, and estate taxes on self-employment rates. Regression results show that most of these taxes have significant but small effects on self-employment activity. A battery of cointegration and causality tests confirms the general finding that taxes can have significant influences on entrepreneurship, but they are likely to be ineffective tools for generating meaningful changes in entrepreneurial activity.     

Consumer Ethics: A Cross-Cultural Study of the Ethical Beliefs of Turkish and American Consumers

The ethical climate in Turkey is beset by ethical problems. Bribery, environmental pollution, tax frauds, deceptive advertising, production of unsafe products, and the ethical violations that involved politicians and business professionals are just a few examples. The purpose of this study is to compare and contrast the ethical beliefs of American and Turkish consumers using the Ethical Position Questionnaire (EPQ) of Forsyth (1980), the Machiavellianism scale, and the Consumer Ethical Practices of Muncy and Vitell questionnaire (MVQ). A sample of 376 subjects that consists of American consumers (n = 188) and Turkish consumers (n = 199) was used to compare the ethical beliefs and practices of the two samples. The MANOVA results for the two nationality groups found that five out of six criterion variables differed between the two groups. The implications of this study are intended to assist marketers to develop strategies that suit a particular market and lessen their risk of entry. Mohammed Y.A. Rawwas is Professor of Marketing at the University of Northern Iowa. He also taught as a Visiting Professor at a range of universities in Japan, France, Austria, Russia, China, Hong Kong, Trinidad and Tobago. His areas of research include ethical and social issues in marketing, cross-cultural studies, marketing education, and supply chain management. He has published extensively across these areas including works in Journal of Business Research, International Marketing Review, Journal of Consumer Ethics, and Journal of Marketing Education, among others.Ziad Swaidan is Assistant Professor of Marketing at the University of Houston-Victoria. He received his Ph.D. from the University of Mississippi. His research has appeared in several journals, including the Journal of Business Ethics, and International Business Review, among others. Mine Oyman is Assistant Professor of Marketing at Anadolu University in Turkey. Her areas of research include consumer ethics, cross-cultural studies, and marketing education. She has presented previous works at a range of international and local conferences.     

Malmquist indices of productivity growth for Islamic and conventional banks in Malaysia

This paper studies the total factor productivity （TFP） of banks in Malaysia with the emphasis on comparing the relative productivities of Islamic and Conventional banks. The Malmquist index approach is used to decompose productivity growth into technical efficiency and technological change. The productivity growth is measured and decomposed into technical change and efficiency change. The efficiency change is further decomposed into pure efficiency change and scale efficiency. It is found that Islamic banks＇ productivity growth is limited by its lack of technological change compared to its conventional counterparts. Nonetheless, both types of banks are operating at the correct level in terms of scale or size.     

Case study—Embodied virtual agents: An analysis on reasons for failure

Despite very optimistic academic and professional literatures, embodied virtual agents (EVA) on commercial websites do not seem to keep all their promises. An update in December 2009 of a benchmark led by OrangeLab in 2007 on embodied agents displayed on French websites reveals that more than 60% of them have actually disappeared. This case study deals with understanding the disappearance of embodied virtual agents thanks to a literature review, a benchmark of 80 agents on French commercial websites and an analysis of experts' in-depth-interviews. This work identifies a series of common errors in the agents design – namely, appearance inadequacy and lack of intelligence and autonomy – that creates a gap between consumers' expectations and agents' performance explaining agents' lack of success. As a conclusion, this case study gives practitioners actionable advices to design future agents by highlighting the characteristics of the ideal virtual sales agent (VSA).     

Semiotic knowledge toward heritage product in tourism industry： A case of Terengganu

In order to provide an appropriate context for the current state of the heritage product in tourism industry, semiotic knowledge become an important role to know deeply the identity, philosophy, and also the meaning of behind the actual product. Scott （2000） stresses the requirement of aesthetic and semiotic content in a creative product, instead of creativity. But, how many of retailers and salespersons in heritage product believe the semiotic as knowledge to present the product and opportunities in their selling？ According to Kotler （2000） a good personal selling will provide a detailed explanation or demonstration of the product. The message can be varied by the salesperson to fit the motivations and interests or each prospective customer. So, the purpose of this paper is to closely examine the level of awareness among retailers and salesperson toward the important of semiotic knowledge as part of strategic persuasion in a selling process. This survey study will develop a sample among retailers and salesperson in Kuala Terengganu as a respondent who give the feedback to fulfill the research questions.     

Cournot, Bertrand, and game theory: A further note

This note synthesizes the discussion on the role of Cournot and Bertrand in the analysis of duopoly by drawing on the history of the debate. We conclude that while Bertrand presented a critique of the mathematical economics of Cournot and stimulated the analysis of strategic choice in game theory, he did not present a duopoly model with price as a strategic variable, as opposed to Cournot's model with quantity. In fact, Cournot has both types of models. We show that Irving Fisher contributed to the myth about Bertrand's duopoly theory.     

Growth limitation and political power : Bruno Fritsch,Ballinger Publishing Company,Cambridge, Mass.

Standardization in modeling is understood here as a strategic process to improve the transfer of models and modeling know-how, to diminish the gap between model builders and model users, and to make the art of modeling an honorable science on a consolidated basis. Within the wide spectrum of standardization efforts, this paper reflects on a general approach for an improvement of model transfer, based on technical concepts for the next generation of software tools. These tools will be developed for large-scale modeling activities. Three formal software concepts to meet these needs are discussed: modularization, software interfaces, and integrated modeling systems. Although modularization is understood here as a concept characterizing the transferable good (the models), the other two concepts refer to output (or input) characteristics of the modeling tools and to their performance requirements. Some remarks on implementation of technical standards are added.     

Rational functions: an alternative approach to asset pricing

This paper shows that asset prices are linear polynomials of various underlying explanatory factors and asset returns being ratios of these polynomials, are rational functions that do not add linearly when averaging. Hence, average returns should be modeled based on stock prices. However, continuous returns may be treated as approximately linear across time and modeled directly. Our new Rational Function (RF) models, empirically outperform the traditional asset pricing models like the Capital Asset Pricing Model (CAPM) and the Fama–French three and five-factor models for both average and continuous returns. Moreover, the RF theory also provides a model to estimate the asset volumes. The average change in asset volumes together with average returns provide the estimates for average change in market values of assets. Thus, the RF model approach can be used to select assets that provide either highest returns for profit maximization or highest change in market values for wealth maximization for given levels of risk.