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• BA, Temple University, 1971
• MA, Brown University, 1973
• PhD, Cornell, 1976

University of Maryland 1976-81

• Industrial organization
• Public policy toward business
• Antitrust policy

• Antitrust policy
• Regulation and deregulation
• Social impacts of tax policy

• Industrial Organization: Theory and Practice, Fifth Edition with Elizabeth J. Jensen (Oxford, UK: Taylor & Francis, 2019)
• "Status Quo Bias," in Victor J. Temblay, Elizabeth Schroeder, and Carol Horton Tremblay, eds. The Handbook of Behavioral Industrial Organization, (Cheltenham, UK/Northhampton, MA: Edward Elgar Publishing, 2018:172-193.
• Industrial Organization: Theory and Practice, Fourth Edition with Elizabeth J. Jensen (Upper Saddle River, NJ: Pearson Prentice Hall, 2012)
• Microeconomics, 2nd Edition Chinese Edition (Taipi, Taiwan, Yee Yee Books, 2012)
• Microeconomics, Second Edition, published as a .learn ebook (Upper Saddle River, NJ: Pearson Prentice Hall, 2009)
• Industrial Organization: Theory and Practice, Greek Edition with Elizabeth J. Jensen (Upper Saddle River, NJ: Pearson Prentice Hall, 2009)
• Industrial Organization: Theory and Practice, Third Edition with Elizabeth Jensen (Boston: Addison Wesley Longman, 2007)
• Industrial Organization: Theory and Practice, Third Edition Chinese Edition with Elizabeth J. Jensen (Pearson/China, 2008)
• with Rochelle Ruffer, "Microsoft: Who Is Microsoft Today?" in Victor J. Tremblay and Carol Horton Tremblay, eds., Industry and Firm Studies, Fourth Edition (Armonk, NY: M.E. Sharpe, 2007)
• Microeconomics (Boston: Pearson Addison Wesley, 2004) 
• Industrial Organization: Theory and Practice with Elizabeth Jensen (Addison Wesley Longman, 1998)
• Antitrust Action and Market Structure (Lexington Books, 1978)
• The Economics of Antitrust: Cases and Analysis (Little Brown, 1986)
• "Market Structure, Opportunity Costs and Tax Avoidance" with J. Baldani (Review of Industrial Organization, 1990) 
• "The Inefficiencies of 'Unsuccessful' Price Fixing Agreements" (The Antitrust Bulletin, 1988)
• "Welfare and Collusion: Comment" (The American Economic Review, 1982)
• articles in Antitrust Law and Economics Review, Antitrust Bulletin, Social Science Quarterly, The Review of Industrial Organization, and Nebraska Journal of Economics and Business

• Economic adviser to Maryland legislature 1979 
• Economic consultant and expert witness for Maryland Department of Justice in Spiro Agnew case 1981