Marcus, Eric C. (ecm77)

Marcus, Eric C.

Adjunct Assistant Professor
212-678-3042

Office Location:

232 HMann

Office Hours:

By Appointment

Educational Background

  • Ph.D., Social & Organizational Psychology, Columbia University, New York, NY (1985)
  • M.A., Social & Organizational Psychology, Teachers College, Columbia University, New York, NY (1982)
  • B.A., Psychology, Harpur College, SUNY Binghamton, NY (1979)  

Scholarly Interests

  • Applications of psychological knowledge about groups to the development of a global community
  • Understanding ways to work productively with resistance to change

Selected Publications

Coleman, P.T., Deutsch, M. and Marcus, E.C., (Eds). (2014). Handbook of Conflict Resolution: Theory and Practice (3rd Ed.). San Francisco: Jossey-Bass.

Marcus, E.C. (2014). Change and Conflict: Motivation, Resistance and Commitment. In Coleman, P.T. , Deutsch, M., and Marcus, E.C. (Eds.), Handbook of Conflict Resolution: Theory and Practice (3rd Ed.). San Francisco: Jossey-Bass.

Hornstein, H.A. & Marcus, E.C.  (2013). Early Traps in Consulting Efforts: Managing Dysfunctional Client Behavior During “Entry." In R. Sullivan and L. Carter (Eds), Change Champions Field Guide (2nd Ed., pp. 531-540). San Francisco: Jossey-Bass.

Deutsch, M., Marcus, E.C., & Brazitis, S. (2012). A Framework for Thinking about Developing a Global Community. In P.T. Coleman, and M. Deutsch (Eds), Psychological Components of Sustainable Peace (pp. 299-324). New York: Springer Press.
Eric Marcus, PhD, is the founder and principal of The Marcus Group, a New York City based consulting firm specializing in building the capacity of individuals, groups and organizations, for a wide variety of public and private sector client systems. Primary areas of practice over the last twenty years include:  working with individuals and groups on issues of change, leadership development, diversity, feedback, intra and inter group mediation and conflict resolution and related areas.  Dr. Marcus is a certified mediator in New York State involved in community mediation in the Bronx.  He is recent past president of the Organization Development Network of Greater New York and now serves on their Advisory Board.   Eric is one of the co-editors of  The Handbook of Conflict Resolution: Theory and Practice (3rd Edition), with Morton Deutsch and Peter Coleman, in which he has a chapter on Change and Conflict.  Dr. Marcus received his MA and PhD from Columbia University in Social and Organizational psychology, and a Bachelor’s degree from Binghamton University.


The Marcus Group  
Founder and principal of consulting firm specializing in enhancing organization effectiveness and individual and group development for a wide variety of public and private sector client systems. Primary areas of practice include:  working with individuals and groups on issues of change, leadership and team development, diversity,
feedback, intra and inter group mediation and conflict resolution and related areas. (Click to link to The Marcus Group)

Other courses taught:
Summer Principals Academy
Organization Behavior and Team Development (2009-Present); Adjunct Faculty, Teachers College Program and New Orleans Program
Collaborative Conflict Resolution (2010-Present); Adjunct Faculty, Teachers College Program and New Orleans Program

Columbia University Master’s Program in Negotiation & Conflict Resolution
Introduction to Negotiation (Fall 2011 – Present); Lecturer

Columbia University School of International & Public Affairs, Picker Center for Executive Education
Negotiation & Conflict Resolution in the UN Security Council – Special course designed for diplomats of the Kingdom of Saudi Arabia. (Spring 2012)

Baruch College: 
MBA and Master’s Level Courses:
Zicklin School of Business: Department of Management.
Special Topics in HR:  Managing Change (1997-2002); Adjunct Associate Professor
Organization Development and Consultation (2003); Adjunct Associate Professor

Weissman School of Arts and Sciences:  Department of Psychology.
Masters Seminar in Organization Development and Consultation (2006); Adjunct Associate Professor
Special Topics in I/O Psychology - Cooperation and Conflict Resolution: Theory and Practice (2007); Adjunct Associate Professor
  • International Association for Conflict Management
  • Society for Industrial and Organizational Psychology

Society for Industrial/Organizational Psychology (SIOP)

Society for the Psychological Study of Social Issues (SPSSI)

International Association for Conflict Management (IACM)

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