 Having written much about the concept of justice, Cohen became involved, during the 1970s, in the process of Labor/Management arbitration.With the support of the late William Haber (Economics, U-M), a well-known arbitrator, Cohen became a member of the Labor Panel of the American Arbitration Association, and over the years has issued many arbitration awards in many industries.Cohen remains an active arbitrator for the AAA, and also an Act 312 Arbitrator, and Grievance Arbitrator, for the State of Michigan.