F?re R, S Grosskopf and C Pasurka (1989). “The Effect of Environmental Regulations on the Efficiency of Electric Utilities: 1969 Versus 1975.” Appl Econ 21: 225-235.

F?re R, S Grosskopf and C Pasurka (1989). “Multilateral Productivity Comparisons When Some Outputs Are Undesirable: A Non-Parametric Approach.” Review of Economics and Statistics 71(1): 90-98.

F?re R, S Grosskopf and CA Pasurka (2001). “Accounting for Air Pollution Emissions in Measures of State Manufacturing Productivity Growth.” J Regional Science 41(3): 381-409.

F?re R, S Grosskopf and CA Pasurka (2006). “Social Responsibility: US Power Plants 1985-1998.” JPA 26(3): 259-267.

F?re R, S Grosskopf and AP Roos (1995). “Reply to Comments on “Productivity and Quality Changes in Swedish Pharmacies.” Int J Prod Econ 39(1/2): 147-161.

F?re R, S Grosskopf and P Roos (1995). “Productivity and Quality Changes in Swedish Pharmacies.” Int J Prod Econ 39: 137-147.

F?re R, S Grosskopf and P Roos (1996). “On Two Definitions of Productivity.” Economics Letters 53(3): 269-274.

F?re R, S Grosskopf, CAK Lovell and C Pasurka (1989). “Multilateral Productivity Comparisons When Some Outputs Undesirable – a Nonparametric Approach.” Review of Economics and Statistics 7: 90-98.

F?re R, S Grosskopf, CAK Lovell and S Yaisawarng (1993). “Derivation of Shadow Prices for Undesirable Outputs – a Distance Function-Approach.” Review of Economics and Statistics 7: 374-380.

F?re R, S Grosskopf and D Margaritis (2002). “Economic Reform and Productivity Growth: the Case of Australia and New Zealand.” Mathematical and Computer Simulation 59(1-3): 143-152.