Thirty years have passed since Pfeffer and Salancik's seminal work on resource dependence theory (RDT). During this time RDT has been applied broadly across the research domain to explain how organizations reduce environmental interdependence and uncertainty. In this review, the authors assess the conceptual development, empirical research, and application of RDT. They structure their review around the five options that Pfeffer and Salancik propose firms can enact to minimize environmental dependences: (a) mergers/vertical integration, (b) joint ventures and other interorganizational relationships, (c) boards of directors, (d) political action, and (e) executive succession. The authors summarize past work, synthesize contemporary thought, and propose future research directions.
SUMMARYInitially, Grid technologies were principally associated with supercomputer centres and large-scale scientific applications in physics and astronomy. They are now increasingly seen as being relevant to many areas of e-Science and e-Business. The emergence of the Open Grid Services Architecture (OGSA), to complement the ongoing activity on Web Services standards, promises to provide a service-based platform that can meet the needs of both business and scientific applications. Early Grid applications focused principally on the storage, replication and movement of file-based data. Now the need for the full integration of database technologies with Grid middleware is widely recognized. Not only do many Grid applications already use databases for managing metadata, but increasingly many are associated with large databases of domain-specific information (e.g. biological or astronomical data). This paper describes the design and implementation of OGSA-DAI, a service-based architecture for database access over the Grid. The approach involves the design of Grid Data Services that allow consumers to discover the properties of structured data stores and to access their contents. The initial focus has been on support for access to Relational and XML data, but the overall architecture has been designed to be extensible to accommodate different storage paradigms. The paper describes and motivates the design decisions that have been taken, and illustrates how the approach supports a range of application scenarios. The OGSA-DAI software is freely available from http://www.ogsadai.org.uk.
The authors examine whether task interdependence moderates the relationship between the helping form of organizational citizenship behavior (OCB) and group performance. In a laboratory study, 62 groups with 3 members each completed a card-sequencing activity in which the level of task interdependence among group members was manipulated. Independent evaluators assessed helping by viewing videotapes of the groups' interactions during the sequencing activities. Performance was measured as a combined function of group speed and accuracy. Two prior field studies reported contradictory results regarding the impact of helping on group performance. Results from this study suggest that task interdependence may explain these results, and that the relationship between helping and group performance depends on the level of task interdependence required of group members.
Using trait activation theory as a framework, the authors examined the moderating role of two situational variables-perceptions of organizational politics and perceptions of leader effectiveness-on the relationship between core self-evaluations and job performance. Results from two samples (N = 137 and N = 226) indicate that employee perceptions of their work environment moderated the relationship between their core self-evaluations and supervisor ratings of their performance. In particular, those with higher core self-evaluations received higher performance ratings in environments perceived as favorable than in environments perceived as unfavorable.
Locus of control-a fundamental individual difference variable that reflects individuals' beliefsabout the degree of control they have over events in their lives-has been formally studied for more than 50 years. Early scholarship demonstrated that locus of control was a key predictor of various work-related outcomes, ranging from job attitudes and affect to motivation and behavior. Despite this evidence, the majority of contemporary organizational research has moved away from examining locus of control as an independent construct. Instead, locus of control is now commonly examined as a component of core self-evaluation. However, recent research suggests that locus of control is in fact an independent, distinct concept and that core selfevaluation research should continue without incorporating locus of control in future work.This presents an opportunity to theoretically review locus of control as a distinct construct and explicate its salient characteristics. Accordingly, this review aims to further clarify the construct of locus of control, provide a foundation upon which research may build, and elucidate fruitful avenues for future research. KEYWORDSindividual differences, locus of control, organizational behavior 1 There are well over 6,000 articles, according to a Web of Science topic search.2 According to a Web of Science search, in the last decade, the majority (57%) of the approximately 45 articles published each year in the organizational sciences studied locus of control as a dimension of core self-evaluation.
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