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.     

ESTIMATION OF ENGEL ELASTICITIES FROM THE BOX-COX ENGEL FUNCTION

A general type of Engel function which can be called the Box-Cox Engel function is developed. This function is used to estimate the relationship between the dependent and explanatory variables for which many commonly used Engel functions become special cases. The Maximum Likelihood (ML) method is used to estimate its parameters using grouped Household Expenditure Survey (HES) data. These estimated parameters are then used to estimate Engel elasticities for total food and various non-food items. The Box-Cox Engel function is also used to discriminate among the commonly used Engel functions, by performing a parametric test on the power parameters. A joint test on the different power transformation has been done by the likelihood ratio test and it turns out that none of the commonly used Engel functions are appropriate for the Australian HES 1975-76 data, although the double log Engel function is not significantly different from the Box-Cox Engel function for five out of ten consumption items.     

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.     

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.