Unions and ADR: The Relationship between Labor Unions and Workplace Dispute Resolution in U.S. Corporations Ariel C. Avgar* J. Ryan Lamare" David B. Lipsky*** Abhishek Gupta**** Acknowledgements: The authors are deeply indebted to Kathy Bryan, President of the International Institute for Conflict Prevention and Resolution (CPR), and Thomas Stipanowich, Director of the Straus Institute for Dispute Resolution at Pepperdine University, for their support of this project. Their advice and counsel at every stage of the project are greatly appreciated. Harry Katz, Dean of the ILR School at Cornell, provided financial support for this study, and we express our sincerest thanks to him. We are also grateful to John Bickerman, not only for his financial support of the research but also for his advice throughout the project. We express our sincerest thanks to Sally Klingel for her invaluable assistance in developing the survey instrument used in this study. As always, we are grateful to Yasamin Miller, Director of the Survey Research Institute (SRI) at Cornell University, for her advice and her expert supervision of the administration of the survey; Darren Heam, Manager of SRI, also provided valuable advice and assistance. We want to thank several Cornell students who assisted in the collection and coding of the data used in this study, including Azadeh Sakizadeh and Derya Akbaba. We are grateful to Michael Maffie for his able assistance in the preparation of this paper. WonJoon Chung, a graduate student at the University of Illinois, also assisted us, and we express our thanks to him. As always, we are grateful to Missy Harrington for her excellent assistance. .Ariel C. Avgar is an assistant professor at the School of Labor and Employment Relations and the College of Medicine at University of Illinois at Urbana-Champaign. J. Ryan Lamare is an assistant professor in the Department of Labor Studies and Employment Relations at Penn State University. David B. Lipsky is the Anne Evans Estabrook Professor of Dispute Resolution and Director of the Scheinman Institute on Conflict Resolution at the ILR School at Cornell University. Abhishek Gupta is a graduate student at the ILR School at Cornell University. 63