Journal ArticleDOI
Network Evolution: The Origins of Structural Holes.
Akbar Zaheer,Giuseppe Soda +1 more
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A theory of the origins of network structures, specifically of structural holes, is developed and test, building and testing a theoretical framework proposing that network structures emerge from the interplay of two complementary forces: structural constraints and network opportunities.Abstract:
We develop and test a theory of the origins of network structures, specifically of structural holes, building and testing a theoretical framework proposing that network structures emerge from the interplay of two complementary forces: structural constraints and network opportunities. We analyze data on a co-membership network among 501 production teams in the Italian TV production industry tracked over a period of 12 years, explicitly accounting for endogeneity. We find that structural holes spanned by teams originate from the prior status and centrality of teams that members were part of in the past, in addition to structural holes spanned in the past. But a focal team spans fewer structural holes if its members were part of cohesive teams earlier and if the past teams they were connected to produced similar artistic content. We also demonstrate that spanning structural holes is associated with superior team performance in terms of greater viewership. The results support both opportunity exploitation and...read more
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The knowledge-creating company : how Japanese companies create the dynamics of innovation
TL;DR: In this article, Nonaka and Takeuchi argue that Japanese firms are successful precisely because they are innovative, because they create new knowledge and use it to produce successful products and technologies, and they reveal how Japanese companies translate tacit to explicit knowledge.
Journal ArticleDOI
Leadership theory and research in the new millennium: Current theoretical trends and changing perspectives
TL;DR: The authors conducted an extensive qualitative review of leadership theory across 10 top-tier academic publishing outlets that included The Leadership Quarterly, Administrative Science Quarterly, American Psychologist, Journal of Management, Academy of Management Journal, academy of management review, journal of Applied Psychology, Organizational Behavior and Human Decision Processes, and Personnel Psychology.
Journal ArticleDOI
Introduction to the Special Issue: The Genesis and Dynamics of Organizational Networks
TL;DR: A framework that begins by discussing the meaning and role of network dynamics and goes on to identify the drivers and key dimensions of network change as well as the role of time is presented, which concludes with theoretical and methodological issues that researchers need to address in this domain.
Journal ArticleDOI
Organizational Social Network Research: Core Ideas and Key Debates
Martin Kilduff,Daniel J. Brass +1 more
TL;DR: In this paper, a review examines the coherence of the research tradition (in terms of leading ideas from which the diversity of new research derives) and appraises current directions and controversies.
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Social Network Analysis: Foundations and Frontiers on Advantage
TL;DR: An overview of social network analysis focusing on network advantage as a lens that touches on much of the area is provided and frontiers of advantage contingent on personality, cognition, embeddedness, and dynamics are discussed.
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Journal ArticleDOI
The moderator–mediator variable distinction in social psychological research: Conceptual, strategic, and statistical considerations.
Reuben M. Baron,David A. Kenny +1 more
TL;DR: This article seeks to make theorists and researchers aware of the importance of not using the terms moderator and mediator interchangeably by carefully elaborating the many ways in which moderators and mediators differ, and delineates the conceptual and strategic implications of making use of such distinctions with regard to a wide range of phenomena.
Journal ArticleDOI
The Strength of Weak Ties
TL;DR: In this paper, it is argued that the degree of overlap of two individuals' friendship networks varies directly with the strength of their tie to one another, and the impact of this principle on diffusion of influence and information, mobility opportunity, and community organization is explored.
Book ChapterDOI
Prospect theory: an analysis of decision under risk
Daniel Kahneman,Amos Tversky +1 more
TL;DR: In this paper, the authors present a critique of expected utility theory as a descriptive model of decision making under risk, and develop an alternative model, called prospect theory, in which value is assigned to gains and losses rather than to final assets and in which probabilities are replaced by decision weights.
Journal ArticleDOI
A Coefficient of agreement for nominal Scales
TL;DR: In this article, the authors present a procedure for having two or more judges independently categorize a sample of units and determine the degree, significance, and significance of the units. But they do not discuss the extent to which these judgments are reproducible, i.e., reliable.
Journal ArticleDOI
Social Capital in the Creation of Human Capital
TL;DR: In this paper, the concept of social capital is introduced and illustrated, its forms are described, the social structural conditions under which it arises are examined, and it is used in an analys...