A research framework for group support systems

Over the last decade, many methodologies and techniques have been devised to improve the efficiency and effectiveness of cooperative working. The efficacy of many of these approaches has not been rigorously assessed, causing doubt about their applicability and helping restrict their use. Additionally, research effort has been dissipated. The need is for a generally agreed framework within which research can be conducted and results determined. This article proposes such a framework, involving the identification of the context, process, and outcome variables which, a priori, are deemed important to understanding, and subsequently predicting, the appropriate forms of intervention in the workings of groups. Six major components have been identified: the organizational environment, the group context, the process context, the group process, the substantive outcomes, and process performance indicators. Within these six components, 16 macrovariables have been identified. Within these macrovariables, 90 variables have been selected that characterize an issue-handling situation and its outcomes. The framework is applicable to a very wide range of group support systems used in many contexts.     

On-line group decision support by preference programming in traffic planning

Preference programming is a decision support technique which allows decision makers to give preference statements of weight ratios in terms of intervals instead of single numbers in a value tree. Individual preferences, based on single number statements, can be combined into an interval model, and the negotiation proceeds by focusing on decreasing the width of the intervals. The preference programming approach was evaluated with a realistic traffic planning problem by using the HIPRE 3+ Group Link software. The results from nine test groups indicate that preference programming is an operational group decision support technique which initiates negotiations and efficiently directs the discussion towards issues which are relevant in reaching a consensus.     

Advances in computation,statistical methods,and testing of discrete choice models

This paper gives a brief overview of recent developments in computation, estimation, and statistical testing of choice models, with marketing applications. Topics include statistical models for discrete panel data with heterogeneous decision-makers, simulation methods for estimation of high-dimension multinomial probit models, specification tests for model structure and for brand and purchase clustering, and innovations in numerical analysis for estimation and forecasting. In collaboration with Denis Bolduc, David Bunch, Michael Keane, Don Kridel, and Steve Stern.     

How group efficacy mediates the relationship between group affect and identification

This study examines the mediating role of group efficacy on the relationship between group affect and group identification by integrating the collective cognition process. Using a sample of forty-seven work groups in Study 1, the results show that group efficacy fully mediates the relationship between positive and negative group affect and group identification. Study 2 applies a two-wave panel design to verify the impact of group efficacy on group identification. The results of Study 2 indicate that group efficacy relates positively to the development of group identification. The implications for theory and practice are discussed.     

Managers and their not-so rational decisions

Today's corporate environment requires managers to be excellent decision makers. Their ability to make fast, widely-supported, and effective decisions will, in large part, shape the performance of their firms. In this article, we describe two cognitive systems that influence decision making. System 1 refers to a process that is fast, effortless, and intuitive. System 2 is a slow, controlled, and rule-governed decision-making process. Both are important to a wide variety of managerial decisions, and they interact with each other. There are, however, a number of forces at work that hinder the effectiveness of these processes. For example, we know from prospect theory that managers are unwilling to incur loss, so much so that they often make irrational decisions based on a small probability that they could avoid such loss. Another example, the escalation of commitment, explains why managers may continue to dedicate resources to failed projects. We describe these and other biases, with a view toward helping managers better understand the problems of decision making and improve the effectiveness of their decisions.     

Consumer power and choice deferral: The role of anticipated regret

This paper examines the influence of social power on consumers' propensity to defer choice. Based on the notion that elevated power reduces regret anticipation—the fear of making a wrong choice—it is proposed that power influences the extent of choice deferral by reducing consumers' susceptibility to anticipated regret. Because of the regret-based mechanism, power can increase or decrease consumers' propensity to defer choice, depending upon the situational factors that are associated with anticipated regret, such as salience of regret, outcome reversibility (e.g., return policy), and locus-of-regret (postponing vs. choosing now). Using different manipulations of power, seven studies provide consistent support for the proposed effects and show that situational factors and marketing strategies can induce, turn off, or even reverse the effect of power on deferral. Theoretical contributions and managerial implications are discussed.     

Decisive visual saliency and consumers׳ in-store decisions

This paper focuses on consumers׳ in-store visual tactics and decision-making. It has been argued that many consumers shop by routine or by simple rules and justification techniques when they purchase daily commodities. It has also been argued that they make a majority of decisions in the shop, and that they are affected by the visual stimuli in the store. The objective for this paper is to investigate the visual saliency from two factors: 1) in-store signage and 2) placement of products. This is done by a triangulation method where we utilize data from an eye-track study and sales data from grocery stores. The first study takes place in laboratory settings with a simulated purchase situation, and the second research design builds on manipulated in-store settings and data from real purchases. We found optimal placement of two comparable goods (branded good and private label) to increase visual attention and sale for both goods. The use of signage increases visual attention and sale as well, yet only for the product that the label addressed, implying a cannibalization effect. The limitation of the study and implications for retail managers and for brand owners are discussed.     

Distributed group support: The effects of voting Tools on group perceptions of media richness

Decision groups distributed both temporally and geographically encounter a multitude of coordination problems. This experiment used a set of GDSS Tools called List and Vote, and alternative interaction management procedures, as mechanisms for coordinating distributed groups using a computer conferencing system and for structuring group processes. The study examined media richness using a modification of the adjective-pairs developed by Zmud, Lind, and Young (1990). The Tools significantly improved subjective perceptions of media richness. The attempted manipulation of the presence or absence of sequential procedures for the most part was not effective in creating significant differences in group perception of media richness.     

Efficient choice set designs for estimating availability cross-effects models

Batsell and Polking proposed a discrete choice model which incorporates the availability (presence or absence) of competing brands into the utility of each brand under study. The information on relative impacts of adding or deleting brands is of strategic interest, and models that do not incorporate such effects may be misleading. The designs suggested by Batsell and Polking have 2^m–m–1 choice sets. Even with as few as 10=m brands, this requires over 1000 choice sets. In this paper we provide a catalog of designs for estimating cross effects models in as few as 2m–1 choice sets. This will make cross effects modelling practical in a wide range of academic and commercial settings.     

Financing decisions as a source of conflict in venture boards

Governance scholarship has suggested that venture boards should be structured so as to stimulate internal conflict. However, structure is a weak predictor of board effectiveness. Moreover, conflict can be dysfunctional, especially when it is focused on relationships rather than tasks. We show that venture boards experience more relationship conflict when they make financing decisions that involve devaluation of the venture and that this effect is moderated by whether the CEO is a founder. Our findings should prompt venture governance scholars to reconsider the importance of board structure, the value of board conflict and the behavior of founder- versus non-founder CEOs.     

Understanding a firm's openness decisions in innovation

The degree of openness in innovation, ranging from closed to multiple levels of openness, is a key strategic decision for managers. Therefore, this study aims to carefully investigate the underlying drivers of openness. A major result of this study is that the degree of openness underlies separate mechanisms for being closed in innovation and higher degrees of openness. The factors that prevent firms from being open are a lack of market and technological knowledge (knowledge gaps), ineffective intellectual property (IP) protection mechanisms, and competitor threats such as market entries and imitation. The most important factors that increase the degree of openness are a firm's need for financial funding in innovation and the effectiveness of a firm's IP protection mechanisms.     

企业筹资决策所存在的问题及分析

1.企业筹资决策所存在的问题我国证券市场成立迄今已有十多年的历史,股票市场成为上市公司融资的重要场所.我国现阶段上市公司筹资的特点如下: 1.1多种筹资方式的选择中首选股权融资 我国的上市公司表现出明显的股权融资偏向.1995年至1997年,我国企业本外币股票融资额分别为150亿元、425亿元和1285亿元,呈迅速增长;债券融资则停滞不前,甚至出现萎缩的态势,分别为216亿元、268亿元和250亿元.近年来,增发来势汹涌.     

Financial slack and venture managers' decisions to seek a new alliance

We examine two distinct perspectives to analyze the role of financial slack in the decisions of technology venture managers to seek strategic alliances. According to the capabilities perspective, financial slack provides managers with the ability to maximize the benefits from acquiring missing capabilities through alliance formation, whereas according to the resource dependence perspective, financial slack buffers the managers' motivations to seek alliances as a reaction to external environmental scarcity. Drawing on an experimental design and data on 1632 decisions nested within 51 managers, we find support for a combined perspective demonstrating that managerial discretion in the form of financial slack moderates how internal capabilities and context encourage managers to seek alliances. We discuss implications of our work for the alliance literature.     

Simple Decision Aids and Consumer Decision Making

To help consumers deal with increasing amounts of information, many online retailers offer simple decision aids, such as the ability to sort on a particular attribute or eliminate undesired alternatives. The authors propose that consumers use simple decision aids as substitutes for cognitive effort, potentially with adverse consequences for decision making. An experimental study shows that providing unrestricted sorting increases decision quality only when choice conflict is low; beyond a certain point, greater use of the decision aid is associated with declines in decision quality. A second study shows that that allowing consumers to sort alternatives only one time enhances decision quality and, when choice conflict is high, reduces decision effort. A third study shows that providing elimination as well as sorting tools helps mitigate the negative effects of simple decision aids. Although the availability of sorting alone hurts decision quality when choice conflict is high, decision quality under choice conflict is improved when both sorting and elimination tools are provided. Implications for retail practice are discussed.     

Influence of virtual communities in purchasing decisions: The participants' perspective

This study intended to fill some gaps in knowledge about virtual communities and their influence on consumers' purchasing decisions. A Brazilian Orkut community, whose central theme is preparing for wedding ceremonies, was investigated to reveal relationships among members and group influences on purchasing decisions. Twenty-one interviews were conducted by telephone. Results unveil a basic code of conduct, suggesting that the community can also act as a normative reference group, with strong identification among participants. Although the central interest – the wedding ceremony and party – could be considered as episodic, many members actively stay in the community after being married, just to help others. Group leaders seemed to be active participants, those with more experience with products related to the group's interests, or those perceived as having refined tastes. There was evidence that purchasing intentions and behavior can be altered as a result of interactions among members.     

Private equity investment decisions in family firms: The role of human resources and agency costs

This study examines decision making criteria that are employed by private equity (PE) investors selecting family firms. Hypotheses test the likelihood of investment based on family firm characteristics. Findings show that PE professionals take into account family-specific criteria, including human resources and opportunities to reduce agency costs. Furthermore, PE professionals prefer family firms that are already professionalized. This research contributes to the family firm literature on both a theoretical and a methodological level, exploring nonfamily succession routes and employing techniques— conjoint analysis for data collection and multilevel models for data analysis— that have seldom been used in this context.     

Determinants of retail bank choice in Nigeria: a focus on gender-based choice decisions

As the Nigerian retail banks customers become more sophisticated, it is now very important that retail banks determine the factors that are important and relevant to the customers’ retail bank choice decisions. By using a survey of retail bank customers, this study evaluates the relative importance attached to retail banks’ choice criteria used by male and female customers in Nigeria. The results show that there are some differences in choice factors used by male and female customers in selecting a retail bank for patronage. The recommendation is that bank managers should take both female and male market segments into consideration when making retail bank strategic planning in order to become competitive. The findings can assist retail bank managers in refining their marketing strategies as a means of overcoming the intense competition that exists in the Nigerian banking system.     

多品种小批量生产与成组技术

本文概述了以研制电子设备为主要任务的研究机构在多品种、小批量生产时的技术准备和生产管理中的不足之处,简要提出了改进措施。探讨了应用成组技术的可行性,提出了对分类编码的初步设想。     

Indian ocean rim trade bloc: Prospects and problems

This article advances the view that regional integration among ten nations along the Indian Ocean rim will have positive economic and political consequences for all the members. Emergence of this geographically large area with one-fourth of the human population will be good for financial markets and the global economy as well. Planned regional arrangements will offer major benefits to outsiders, for example, Gulf countries, by stimulating growth and enhancing market forces. Traditional enmity between India and Pakistan, however, and the economic and political adjustments that South Africa is undergoing after the first free election may prevent cooperation in the region, not to mention the fact that the area has deep economic problems with mass poverty and low per capita incomes. Problems aside, there are hopeful signs, both economic and political, that encourage the Indian Ocean rim nations to seriously consider establishing a regional trade bloc. For example, a substantial middle class is emerging in the area. Industrialization is slowly progressing, challenging the dominance of the agricultural sector. India, however, will have to take the initiative in the matter. The size of her economy and her pre-eminence as a regional political force equip India to play the key role in the establishment of a regional agreement in the area.