Effects of teleconferencing technologies: An exploration of comprehension,feedback, satisfaction and role-related differences

Several theoretical approaches have been put forth to predict and explain the effects of teleconferencing technologies. One approach is to examine the functions of nonverbal signals and to make predictions based on the fact that different teleconferencing technologies allow nonverbal communication to different extents. One of the functions of nonverbal signals is to allow the listener to provide feedback to the speaker in a communication. Prior research has shown that such feedback enhances listener comprehension. In this study, it was hypothesized that different teleconferencing technologies would allow different levels of feedback based on their ability to accommodate nonverbal signals, and this in turn would affect comprehension. An experimental study was conducted to compare comprehension, feedback, and satisfaction in telephone and computer conferencing. The study confirmed that comprehension and speaker satisfaction are related to feedback, but failed to show a relationship between listener satisfaction and feedback. No difference in comprehension, listener, or speaker satisfaction was observed across teleconferencing technologies. Role-related differences were observed between the speaker and the listener. It is suggested that the effects of teleconferencing technologies can be mapped systematically by examining each of the functions of nonverbal signals, one at a time.     

Some remarks on the construction of independent identically distributed random variables,Markov chains and martingales

In this note, we make some remarks on the construction of sequences of independent identically distributed random variables and of Markov chains concretely on a probability space (Ω,A,P). We also show that there are non non-trivial martingales of exponential type.     

Ethical decision making: An investigation of services marketing professionals

This study investigates the relative influences of professional values and selected demographic variables on the ethical perceptions of services marketing professionals. The relationship between ethical perceptions and ethical judgments of service marketers is also examined. The data were obtained from a mail survey of the American Marketing Association's professional members of service industries. The survey results indicate a positive relationship between a service professional's professional values and his/her perceptions of ethical problems. The results also suggest that ethical judgments of a service professional can be partially explained by his/her perceptions of ethical problems. Implications of the research findings were discussed. Anusorn Singhapakdi is Associate Professor of Marketing at Old Dominion University. His research has been primarily in the areas of marketing/business ethics. He published in various journals such as Journal of the Academy of Marketing Science, Journal of Business Ethics, Journal of Macromarketing, Journal of Personal Selling & Sales Management, and Journal of Public Policy & Marketing. He has presented papers at various professional conferences including the American Marketing Association and the Academy of Marketing Science.C. P. Rao is Eminent Scholar and William B. Spong Chair in Marketing and International Business at Old Dominion University. He has also served on the Marketing faculty at the University of Arkansas and at the Indian Institute of management. He participated in the ICAME program at Stanford University. Dr. Rao was awarded the C.P.M. (Certified Purchasing Manager) by the National Association of Purchasing Manager. Dr. Rao is a frequent contributor to many leading journals and has received the Distinguished Faculty Research Award in the College of Business Administration at the University of Arkansas three times. Scott J. Vitell is Associate Professor and Phil B. Hardin Chair of Marketing at the University of Mississippi. His work has appeared in the Journal of the Academy of Marketing Science, Journal of Business Ethics, Journal of Business Research, Journal of Macromarketing, Journal of Personal Selling & Sales Management, and Research in Marketing as well as various other journals and proceedings.     

TESTING FOR STATIONARITY WITH A BREAK IN PANELS WHERE THE TIME DIMENSION IS FINITE

In this paper, we consider the case of finite time dimension in the panel stationarity tests with structural breaks. By fixing T, the finite sample properties of the tests for both micro (T small and N large) and macro (both T and N large) panel data are generally greatly improved. More importantly, the derivation of the tests for finite T and , as opposed to joint asymptotic where N and simultaneously, avoids the imposition of the rate condition making the test valid for any (T, N) blend. Four models corresponding to the usual combination of breaks are considered. The asymptotic distributions of the test are derived under the null hypothesis and are shown to be normally distributed. Their moments for T fixed are derived analytically employing Ghazal’s corollary 1. The case with unknown breaks is also considered. The proposed tests have generally empirical sizes that are very close to the nominal size. The Monte Carlo simulations show that the power of the test statistics increases substantially with N and T.     

改革开放30年广东省经济增长的实证分析——基于结构突变理论

文章详细剖析结构突变理论并具体表述了内外生结构突变的单位根和趋势稳定的检验。在此基础上,运用结构突变理论,对广东省生产总值指数的数据生成过程进行了实证研究,结果表明,其数据生成过程具备结构突变的趋势平稳过程。同时,利用内、外生结构突变的单位根检验,寻找到其内、外生结构变化点。     

Internationalization of services: The case of intra‐multinational enterprise trade

Increased tradability of services, made possible by the information and communications technology (ICT) revolution, has been at the heart of the internationalization of services. Although rapid growth of the services trade between parents of multinational enterprises (MNEs) and their overseas subsidiaries has contributed to the internationalization of services, empirical studies examining the determinants of intra‐MNE trade in services are few. This article, using the ownership, location, and internalization (OLI) framework, attempts to explain intra‐MNE trade in services. The results provide strong support for the OLI perspective, and posit a complementary relationship between manufacturing foreign direct investment and intra‐MNE services trade. The results also suggest the importance of subsidiaries' absorptive capacity and breadth of global connectedness for intra‐MNE trade.     

Sibling gender and wage differences

Family influences on economic performance are investigated. In particular, sibship sex composition is related to hourly wages using data from the National Longitudinal Survey of Youth 1979. The wages of men are increasing in the proportion of siblings who are brothers, but the wages of women are insensitive to sibling gender. Nonwage outcomes are generally unaffected. Contrasts by age structure and demographic group are also presented. The analysis addresses econometric challenges like the endogeneity of fertility and selection into the workforce. In addition, mechanisms such as labour market interactions, human capital investment and role model effects are documented. A questionnaire on job search indicates a same-gender bias in the use of brothers and sisters in obtaining employment. Developmental and psychological assessments suggest that brothers may be associated with worse childhood home environments and more traditional family attitudes among women. The findings are policy relevant and contribute to an understanding of gender differences and earnings inequality.     

Externalities from Intra-Firm Trade by U.S. Multinationals

International Advances in Economic Research - The share of world trade attributed to intra-firm trade is large and fast-growing. This paper offers new information on the welfare outcome of these...