Department of Economics

Michael Duffy

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Professor

Contact Information

Iowa State University
478E Heady Hall
Ames, IA 50011
(515) 294-6160
mduffy@iastate.edu

Personal Website

Education

PhD, Pennsylvania State, 1981
MS, University of Nebraska, 1977
BS, University of Nebraska, 1975

Research Interests

Farm management, production economics, natural resources economics, integrated pest management, sustainable agriculture, beginning farmers.

Curriculum Vitae:

Selected Publications

Duffy, Michael, 2013 Estimated Costs of Crop Production in Iowa, ISU Extension: FM 1712 // Ag Decision Maker A1-20, (January 2013)
Duffy, Michael, 2012 Iowa Land Value Survey, ISU Extension: Ag Decision Maker C2-70, (January 2013)
Stinn, Matthew; Duffy, Michael, What is the Precision of Land Survey Values?, Choices Vol. 27 no. 3 (2012): 1-5.
Tegtmeier, Erin M; Duffy, Michael, External Costs of Agricultural Production in the United States, International Journal of Agricultural Sustainability Vol. 2 no. 1 (2004): 1-20.

Awards and Honors

2013 Dean's Citation for Extraordinary Contributions, Iowa State University College of Agriculture and Life Sciences
2012 Carl F. Hertz, Distinguished Service to Agriculture, American Society of Farm Managers and Rural Appraisers
2004 College of Agriculture Outstanding Achievement in Extension
1996 Sustainable Agriculture Achievement Award, Practical Farmers of Iowa
1984 Administrator's Special Merit Award of Outstanding Research, USDA

Other Affiliations

Graduate Program in Sustainable Agriculture

Professor

ISU Economics Working Papers Series

Duffy, Michael, Value of Soil Erosion to the Land Owner, WP #12004, March 2012
Duffy, Michael, Return to Iowa Farmland Versus S&P 500, WP #12003, March 2012
Duffy, Michael, Comparing the Stock Market and Iowa Land Values: A Question of Timing, WP #05022, May 2005 Revised on May 2007

Journal Articles

Stinn, Matthew; Duffy, Michael, What is the Precision of Land Survey Values?, Choices Vol. 27 no. 3 (2012): 1-5.
Duffy, Michael, Economies of Size in Production Agriculture, Journal of Hunger & Environmental Nutrition Vol. 4 no. 3&4 (July 2009): 375-392.
Francis, C.; Elmore, R.; Ikerd, J.; Duffy, Michael, Greening of Agriculture: Is It All a Greenwash of the Globalized Economy?, Journal of Crop Improvement Vol. 19 no. 1/2 (2007)
Karlen, D. L.; Hurley, E.; Andrews, S; Cambardella, C.; Meek, M.; Duffy, Michael; Mallarenio, A., Crop Rotation Effects on Soil Quality at Three Northern Corn/Soybean Locations, Agronomy Journal Vol. 98 no. 3 (May/June 2006): 484-495.
Duffy, Michael; Johanns, Ann M., Estimated Returns to Iowa Farmland, Journal of the ASFMRA Vol. 68 no. 1 (July 2005): 102-109.
Tegtmeier, Erin M; Duffy, Michael, External Costs of Agricultural Production in the United States, International Journal of Agricultural Sustainability Vol. 2 no. 1 (2004): 1-20.
Delate, K. M.; Duffy, Michael; Chase, Craig A.; Holste, A.; Friedrich, H.; Wantate, N, An Economic Comparison of Organic and Conventional Grain Crops in a Long-Term Agroecological Research (Ltar) Site in Iowa, Journal of Alternative Agriculture Vol. 18 no. 2 (2003)
Lillywhite, Jay M; Duffy, Michael, A New Perspective on an Old Issue: Multifamily Farms and America's Farm Structure, Journal of Alternative Agriculture Vol. 16 no. 4 (2001)
Baumel, C. Phillip; Wisner, Robert N.; Duffy, Michael, Brazilian Soybeans ﾖ Can Iowa Farmers Compete?, Ag Decision Maker Vol. 5 no. 2 (December 2000)
Shipping, Liu; Duffy, Michael, Tillage Systems and Profitability: An Economic Analysis of the Iowa Max Program, Journal of Production Agriculture Vol. 9 no. 4 (October/December 1996)
Karlen, D. L.; Duffy, Michael; Colvin, T. S., Nutrient, Labor, Energy and Economic Evaluations of Two Farming Systems in Iowa, Journal of Production Agriculture Vol. 8 (October/December 1995)
Gleason, Mark L.; Ali, M. K.; Domoto, Paul A.; Lewis, D. R.; Duffy, Michael, Comparing Integrated Pest Management and Protectant Strategies for Control of Apple Scab and Codling Moth in an Iowa Apple Orchard, HortScience Vol. 4 no. 2 (April/May 1994)
Duffy, Michael, Economics of Soil Specific Crop Management, Soil Specific Crop Management (1993): 245-253.
Duffy, Michael; Huang, W.; Uri, N. D., The Effects of Alternative Policy Options Designed to Reduce Nitrogen Fertilizer Use, Environmental International Vol. 18 (1992): 29-41.
Chase, Craig A.; Duffy, Michael, An Economic Comparison of Conventional and Reduced Chemical Farming Systems in Iowa, American Journal of Alternative Agriculture Vol. 6 no. 4 (1991): 168-173.
Chase, Craig A.; Duffy, Michael; Lotz, William, Economic Analysis of Varying Swine Manure Application Rates on Continuous Corn, Journal of Soil and Water Conservation Vol. 46 no. 6 (1991): 460-464.
Chase, Craig A.; Duffy, Michael; Webb, John; Voss, Regis, An Economic View of Maintaining High Phosphorous and Potassium Soil Test Levels, American Journal of Alternative Agriculture Vol. 6 no. 2 (1991): 83-86.
Chase, Craig A.; Duffy, Michael, Economic Analysis of the Nashua Tillage Study: 1979-1987, Journal of Production Agriculture Vol. 4 no. 1 (First Quarter 1991): 91-98.
Duffy, Michael, Economic Considerations in Low Input Sustainable Agriculture, Journal of Agricultural Lending Vol. 3 no. 3 (Winter 1990): 34-43.
Lasley, Paul M.; Duffy, Michael; Kettner, K.; Chase, Craig A., Affecting Farmers' Use of Practices to Reduce Commercial Fertilizers and Pesticides, Journal of Soil and Water Conservation Vol. 45 no. 1 (January/February 1990): 132-136.
Duffy, Michael, Iowa Land Values, Realtors Land Institute Vol. XXXX no. 7 (July/August 1988)
Duffy, Michael; Johnson, Stanley R., Agriculture and Groundwater Pollution in Iowa, EPA Journal Vol. 14 no. 3 (April 1988): 19-21.
Duffy, Michael, Agricultural Credit Crisis, Credit World Vol. 73 no. 5 (May/June 1985): 16-20.
Kuchler, Fred; Duffy, Michael; Shrum, R. D.; Dowler, W. M., Potential Economic Consequences of the Entry of an Exotic Fungal Pest: The Case of Soybean Rust, Phytopathology Vol. 74 (September 1984): 916-920.
Duffy, Michael, The Economics of Current Mushroom Pest Management Practices, Journal of Northeastern Agricultural Economics Council Vol. XII no. 1 (Spring 1983): 21-26.

Books and Book Chapters/Sections Authored or Co-authored

Duffy, Michael, The Clock is Ticking for Rural America, Sustainable Land Management Strategies to Cope with the Marginalisation of Agriculture, Ch. 4, Edward Elgar Publishing, Inc, North Hampton, MA, December 2008
Duffy, Michael, The Changing Status of Farms and Ranches of the Middle, Food and the Mid-Level Farm Renewing an Agriculture of the Middle, Ch. 1 and Appendiz, MIT Press, Cambridge, MA, December 2008
Duffy, Michael, The Clock is Ticking for Rural America, Sustainable Land Management, Cheltenham, UK, (Fall/Winter 2008)
Duffy, Michael, Status of Farms and Ranches in the Middle, Renewing an Agriculture of the Middle: Situation and Strategy for the Center of America's Food System, (2008)
Duffy, Michael, How Bioenergy Could Change Land Ownership and Values, Perspectives on 21st Century Agriculture; A Tribute to Walter J. Armbruster, Oak Brook, IL, (2008)
Duffy, Michael, How Bioenergy Could Change Land Ownership and Values, Perspectives on 21st Century Agriculture: A Tribute to Walter J. Armbruster, Farm Foundation, Oak Brooke, IL, December 2007
Duffy, Michael; Nanhou, Virginie, Costs of Producing Switchgrass for Biomass in Southern Iowa, Trends in New Crops and New Uses, Alexandria, VA, (2002)
Hipple, Pat; Duffy, Michael, Farmer's Motivation for Adoption of Switchgrass, Trends in New Crop and New Uses, Alexandria, VA, (2002)
Duffy, Michael; Simmons, Carole, Agrichemical Use, Encyclopedia of Rural America, The Land and People, (1997)
Duffy, Michael, Developing the Next Generation of Weed Management Systems: Economic and Social Challenges, Integrated Weed and Soil Management, (1997)

Published Proceedings

Duffy, Michael, Who Benefits from Biotechnology?, Proceeding, American Seed Trade Association meetings, Chicago, IL, (December 2001)
Duffy, Michael; Ernst, Matthew, 1998 Iowa Cropping Practices, The 11th Annual Integrated Crop Management Conference, "Prospering in the 21st Century", Iowa State University Extension, Iowa State University, Ames, Iowa, (December 1 1999): 211-230.
Duffy, Michael, Adjustments in Business and Practices: How Farmers Can Improve the Bottom Lines in Today's Farm Economy, Agricultural Outlook Forum, U.S. Department of Agriculture, Arlington, Virginia, (February 22 1999): 67-71.
Jolly, Robert W.; Duffy, Michael, Financial Risks Under Freedom to Farm: A Farm Level Perspective, Paper presented at AAEA Organized Symposium, Nashville, Tennessee, (1999)
Duffy, Michael, How Small Farms Compete, Agricultural Outlook Forum, U.S. Department of Agriculture, Washington, D.C., (February 23 1998): 114-119.
Duffy, Michael, Trends in Farm Profitability and Regulations, Proceeding, of Sixteenth Soil Seed Technology Conference, Iowa State University, (1994): 85-94.

Extension Publications

Duffy, Michael, 2012 Farmland Value Survey, ISU Extension: Ag Decision Maker C2-70, (January 2013)
Duffy, Michael, 2013 Estimated Costs of Crop Production in Iowa, ISU Extension: FM 1712 // Ag Decision Maker A1-20, (January 2013)
Duffy, Michael, 2012 Iowa Land Value Survey, ISU Extension: Ag Decision Maker C2-70, (January 2013)
Duffy, Michael, Conservation Practices for Landlords, ISU Extension: Ag Decision Maker A1-41, (May 2012)
Duffy, Michael; Barnhart, Steve, 2012 Estimated Costs of Pasture and Hay Production, ISU Extension: Ag Decision Maker A1-15, (March 2012)
Duffy, Michael, 2012 Estimated Costs of Crop Production, ISU Extension: Ag Decision Maker A1-20, (January 2012)
Duffy, Michael, 2011 Iowa Land Value Survey: Overview, ISU Extension, (December 2011)
Duffy, Michael, 2010 Land Value Survey, ISU Extension: FM 1825, January 2011
Duffy, Michael, 2011 Estimated Costs of Crop Production in Iowa, ISU Extension: FM 1712 // Ag Decision Maker A1-20, (January 2011)
Duffy, Michael, 2009 Iowa Land Values, ISU Extension, December 2009

Other Publications

Duffy, Michael, The Current Situation on Farmland Values and Ownership, July 2011
Guffy, E.; Otto, Daniel; Kliebenstein, James; Duffy, Michael, Economic Impacts from Increasing Pig Farrowing in Iowa, (January 2008)
Honeyman, Mark; Duffy, Michael, Iowa's Changing Swine Industry, (January 2006)
Tegtmeier, Erin; Duffy, Michael, Community Supported Agriculture (Csa) in the Midwest United States: A Regional Characterization, (January 2005)
Duffy, Michael, Soil Management and Land Valuation Conference, (April 7 2002)
Duffy, Michael; Smith, Darnell, Estimated Cost of Crop Production in Iowa 2002, (December 1 2001)
Miranowski, John; Moschini, GianCarlo; Babcock, Bruce A.; Duffy, Michael; Wisner, Robert N.; Beghin, John C.; Hayes, Dermot J.; Lence, Sergio H.; Baumel, C. Phillip; Harl, Neil E., Economic Perspectives on GMO Market Segregation, 1 (1999)

College of Agriculture and Life Sciences

College of Liberal Arts and Sciences

Department of Economics

Michael Duffy

Go To

Professor

Contact Information

Education

Research Interests

Curriculum Vitae:

Selected Publications

Awards and Honors

Other Affiliations

Professor

ISU Economics Working Papers Series

Journal Articles

Books and Book Chapters/Sections Authored or Co-authored

Published Proceedings

Extension Publications

Other Publications

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