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  Partner: UNT Libraries
 Department: Department of Management
 Degree Level: Doctoral
 Collection: UNT Theses and Dissertations
Leader Emergence and Effectiveness in Virtual Workgroups: Dispositional and Social Identity Perspectives

Leader Emergence and Effectiveness in Virtual Workgroups: Dispositional and Social Identity Perspectives

Date: August 2009
Creator: Hite, Dwight M.
Description: In today's global competitive environment, many organizations utilize virtual workgroups to overcome geographic and organizational boundaries. Research into their dynamics has received the attention of scholars within multiple disciplines, and the potential for an integrative approach to the study of virtual workgroups exists. This dissertation is a first step towards such an approach. The primary aim of this research is to examine antecedent and contextual factors that affect the emergence and effectiveness of leaders in virtual workgroups. To achieve this aim, an integrative model assembled from theory and empirical findings in leadership, management, social identity, and communications research is posited. Hypothesized relationships depicted in the model identify key dispositional and contextual variables linked to leader emergence, member behavior, and leader effectiveness within virtual workgroups. This study employed a nonexperimental research design, in which leader emergence and social identity manifest as naturally occurring phenomena. Data collection occurred via two web-based surveys administered at different points in time. Hypothesized relationships were tested utilizing correlational and hierarchical moderated multiple regression analyses. The findings of this dissertation suggest that traits, such as personality and cognitive ability, are not associated with leader emergence in virtual workgroups. In addition, the results indicate that the exhibition of ...
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Optimal design of Dutch auctions with discrete bid levels.

Optimal design of Dutch auctions with discrete bid levels.

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Date: May 2010
Creator: Li, Zhen
Description: The theory of auction has become an active research area spanning multiple disciplines such as economics, finance, marketing and management science. But a close examination of it reveals that most of the existing studies deal with ascending (i.e., English) auctions in which it is assumed that the bid increments are continuous. There is a clear lack of research on optimal descending (i.e., Dutch) auction design with discrete bid levels. This dissertation aims to fill this void by considering single-unit, open-bid, first price Dutch auctions in which the bid levels are restricted to a finite set of values, the number of bidders may be certain or uncertain, and a secret reserve price may be present or absent. These types of auctions are most attractive for selling products that are perishable (e.g., flowers) or whose value decreases with time (e.g., air flight seats and concert tickets) (Carare and Rothkopf, 2005). I began by conducting a comprehensive survey of the current literature to identify the key dimensions of an auction model. I then zeroed in on the particular combination of parameters that characterize the Dutch auctions of interest. As a significant departure from the traditional methods employed by applied economists and game theorists, ...
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Post-Implementation Evaluation of Enterprise  Resource Planning (ERP) Systems

Post-Implementation Evaluation of Enterprise Resource Planning (ERP) Systems

Date: May 2008
Creator: Madapusi, ArunKumar
Description: The purposes of this dissertation were to define enterprise resource planning (ERP) systems, assess the varying performance benefits flowing from different ERP system implementation statuses, and investigate the impact of critical success factors (CSFs) on the ERP system deployment process. A conceptual model was developed and a survey instrument constructed to gather data for testing the hypothesized model relationships. Data were collected through a cross-sectional field study of Indian production firms considered pioneers in understanding and implementing ERP systems. The sample data were drawn from a target population of 900 firms belonging to the Confederation of Indian Industry (CII). The production firms in the CII member directory represent a well-balanced mix of firms of different sizes, production processes, and industries. The conceptual model was tested using factor analysis, multiple linear regression analysis and univariate Anova. The results indicate that the contributions of different ERP system modules vary with different measures of changes in performance and that a holistic ERP system contributes to performance changes. The results further indicate that the contributions of CSFs vary with different measures of changes in performance and that CSFs and the holistic ERP system influences the success achieved from deployments. Also, firms that emphasize CSFs ...
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The role of strategy in the innovation process: A stage approach.

The role of strategy in the innovation process: A stage approach.

Date: August 2005
Creator: Goktan, Ayse Banu
Description: Organizational innovation has been of central interest in recent years because of its importance for organizational survival and competitive advantage. Researchers in the field have divided the innovation process into stages in an attempt to understand the innovation process and the factors that affect it. However, empirical studies that examine the relationship between the stages are scarce. In addition, although business strategy is emphasized as an important factor in the innovation process, little is known about its role in the innovation process and its effect on the stages. This research provides empirical support for the relationship between the stages of the innovation process and the moderating effect of organizational strategy on the relationship between the stages within the two stage model of innovation. In this study, a direct, positive relationship is proposed between the innovation generation (first stage) and innovation outcome (second stage) stages of the innovation process. Dimensions of innovation outcome that are examined include innovation type (product innovation and process innovation), innovation radicalness and innovation frequency. Low cost, differentiation and market orientation strategies are proposed to be moderators on the relationship between the stages. To test the proposed relationships, a survey was mailed to executives who are involved ...
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Structural holes and Simmelian ties: Exploring social capital, task interdependence, and individual effectiveness

Structural holes and Simmelian ties: Exploring social capital, task interdependence, and individual effectiveness

Date: December 1999
Creator: Engle, Scott L.
Description: Two contrasting notions have been put forward on how social capital may influence individual effectiveness in organizations. Burt (1992) sets forth the informational and control advantages that are possible by building an open network characterized by large numbers of structural holes. In contrast, Coleman (1990) and Simmel (1950) have suggested that network closure, exemplified by large numbers of Simmelian ties, enables actors to develop trust, cohesiveness, and norms which contribute to effectiveness. Simmelian ties are strong, reciprocal ties shared by three actors. It is proposed that an actor's network cannot be dominated by both structural holes and Simmelian ties. Thus, this study examines whether a moderating variable is at work. It is proposed that the actor's task interdependence in the workplace influences the relationship between network closure and individual effectiveness. Actors in less task interdependent environments will benefit especially from the information and control benefits afforded by a network characterized by structural holes. Conversely, actors in highly interdependent environments will benefit especially from the creation of trust and cooperation that result from large numbers of Simmelian ties. Data was collected on 113 subjects in three organizations. Subjects were asked to rate the strength of their relationship with all organization members ...
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A Study of Effective Leadership in the Chinese Context

A Study of Effective Leadership in the Chinese Context

Date: August 2012
Creator: Lau, Wai Kwan
Description: Leadership has attracted a significant amount of scholarly attention in the past few decades. However, most research and theory contributions are to a great extent limited to accounting for leadership practices in the West (Littrell, 2002). This study is designed to develop an effective leadership model that works in the Chinese context. Paternalistic leadership, a dominant leadership style in an Eastern business environment, is compared with transformational leadership, a dominant leadership style in a Western business environment. The notion of transformational leadership was developed under the tutelage of Bernard Bass (1998). Transformational leadership is found to be compatible with collectivistic values (Walumbwa & Lwwler, 2003) and is believed to be appealing and generalizable to Chinese leadership situations (Chen & Farh, 1999). Other researchers have found that within Chinese organizations, leader behaviors are quite distinct from transformational leadership, referring to this leader style as paternalistic leadership (Redding, 1990; Cheng, 1995). The questions are asked, “Transformational or paternalistic leadership, which one is more effective in Chinese organizations? Is one type of leadership superior to the other one in the Chinese culture?” To answer these questions, a model is proposed to clarify the mediating effects of trust and harmony on the relationship between ...
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