This book is based on the comprehensive analysis of a uniquely large data set of published and unpublished labor arbitration decisions in discharge and discipline cases. In great detail, its authors coded more than two thousand decisions issued over a twenty-four year period. They provide a rich array of data describing multiple aspects of each decision’s arbitrator, grievant, and other case characteristics. The book’s overarching focus is the arbitrator’s decision- who wins, who loses and why-including unique comparisons of outcomes in discharge, as compared to discipline cases, and in private, as compared to public, sector cases. The book also reports on the relationship between the type of employee offense and outcomes, and the effect of attorney representation on case outcomes. Other relationships to arbitration decision making examined by the authors include the independent effects of last-chance agreements, quantum of proof standards, job tenure, and the much-debated Seven Tests of Just Cause. The authors are all members of the National Academy of Arbitrators and each has decades of experience as a labor arbitrator. They are the authors of many books and articles on union-management relations and the law and practice of workplace dispute resolution. Laura J. Cooper is the J. Stewart and Mario Thomas McClendon Professor in Law and Alternative Dispute Resolution at the University of Minnesota Law School. Mario F. Bognanno is Professor Emeritus of the Center for Human Resources and Labor Studies at the University of Minnesota Carlson School of Management. Stephen F. Befort is the Gray, Plant, Mooty, Mooty, and Bennett Professor of Law at the University of Minnesota Law School.