December 1999 Table of Contents

Articles
The Social Construction of Organizational Knowledge: A Study of the Uses of Coercive, Mimetic, and Normative Isomorphism
Mark S. Mizruchi and Lisa C. Fein Abstract

Sanctioning Systems, Decision Frames, and Cooperation
Ann E. Tenbrunsel and David M. Messick Abstract

Management Fashion: Lifecycles, Triggers, and Collective Learning Processes
Eric Abrahamson and Gregory Fairchild Abstract

Why Differences Make a Difference: A Field Study of Diversity, Conflict, and Performance in Workgroups
Karen A. Jehn, Gregory B. Northcraft, and Margaret A. Neale Abstract

Provisional Selves: Experimenting with Image and Identity in Professional Adaptation
Herminia Ibarra Abstract

The Formation of Breakaway Organizations: Observations and a Process Model
Bruno Dyck and Frederick A. Starke Abstract

Book Reviews
2 Reviews on Health Care Organizations

Arnold Birenbaum: Managed Care: Made in America - Renée A. Stiles

Kieron Walsh, Nicholas Deakin, Paula Smith, Peter Spurgeon, and Neil Thomas: Contracting for Change: Contracts in Health, Social Care, and Other Local Government Services - Ann Langley

Other Reviews
Sanford M. Jacoby: Modern Manors: Welfare Capitalism since the New Deal - Larry W. Hunter

Timothy Clark, ed.: Advancement in Organizational Behaviour: Essays in Honour of Derek S. Pugh - Christopher Gresov

Jennifer Halpern and Robert Stern, eds.: Debating Rationality: Non-rational Aspects of Organizational Decision Making - Marc Ventresca and J. Keith Murnighan

Paul W. Beamish and J. Peter Killing, eds.: Cooperative Strategies: North American Perspectives Cooperative Strategies: European Perspectives Cooperative Strategies: Asian Pacific Perspectives - Keith G. Provan

Tom R. Tyler, Robert J. Boeckmann, Heather J. Smith, and Yuen J. Huo: Social Justice in a Diverse Society - Robert Folger

Arne L. Kalleberg, David Knoke, Peter V. Marsden, and Joe L. Spaeth: Organizations in America: Analyzing Their Structures and Human Resource Practices - William T. Bielby

Mark Bovens: The Quest for Responsibility: Accountability and Citizenship in Complex Organisations - Marcia P. Miceli

December 1999 Cover from the color slide, " Double Rainbow, Machu Picchu, Peru" (1996) - by Shona L. Brown. Used with the photographer's permission.