Wolff, H. and P. Villalobos (2004): Willingness to Pay for Clean Air in Chile. English version presented at Econometric Society Meeting, Sao Paulo, 2002. In Spanish: Disposición a Pagar por Bienes Ambientales en Chile: Concepto y Aplicación. Revista interdisciplinar de Gestión Ambiental (now: Ecosostenible), 61(6), pp. 42-48. 

Britz, W., T. Heckelei and H. Wolff (2003): Symmetric Positive Equilibrium Problem: a framework for rationalizing economic behavior with limited information: Comment. American Journal of Agricultural Economics, 85(4), pp. 1078-81

Heckelei, T. and H. Wolff (2003): Estimation of constrained optimisation models for agricultural supply analysis based on generalised maximum entropy. European Review of Agricultural Economics, Vol 30 (1), pp. 1–24.

Latacz-Lohmann, U., G. Recke and H. Wolff (2001): Determinants to Switch from Conventional to Biological Farming and the Concept of Path Dependence. German Journal of Agricultural Economics, Vol. 50-7, pp. 433-38. [download the abstract in English]

Wolff, H. and G. Recke (2000): Path Dependence and Implementation Strategies for Integrated Pest Management. Quarterly Journal of International Agriculture, Vol. 39, No.2, pp. 149-171.

Other Publications and Book Contributions:

Wolff, H., H. Chong, and M. Auffhammer (2011): The Questionable Reliability of International Statistics: Evidence from the Human Development Index. Royal Economic Society Media Briefings, June 2011.

Killebrew, K. and H. Wolff (2010): Environmental Impacts of Agricultural Technologies. Evans School Policy Analysis and Research Group, EPAR Paper 65, University of Washington.

Wrobleski, J. and H. Wolff (2010): Risks to Agribusiness Investment in Sub-Saharan Africa. Evans School Policy Analysis and Research Group, University of Washington.

Wolff, H. (2010): Agricultural Policy Information Systems: Measuring Impacts on Markets via Mathematical Programming Models, General Equilibrium Models and Econometrics. In Villalobos, P., A. Engler, and H. Rojas: Regulatory Impacts and International Quality Standards of Food Quality in Chile. University of Talca. In Spanish, ISBN: 978-956-329-007-3.

Wolff, H. (2007): Testing Simulation and Structural Models with Applications to Energy Demand. PhD Dissertation, Publication Number 3275653. ProQuest Dissertations & Theses. Chicago.

Heckelei, T. and H. Wolff (2002): Ansätze zur (Auf-)Lösung eines alten Methodenstreits: Ökonometrische Spezifikation von Programmierungsmodellen zur Agrarangebotsanalyse. In: Brockmeier, M., F. Isermeyer and S. v Cramon Taubadel, (Eds.): Liberalisierung des Weltagrarhandels – Strategien und Konsequenzen. Schriften der Gesellschaft für Wirtschafts- und Sozialwissenschaften des Landbaues e.V., Band 37, Münster-Hiltrup, pp. 377-388. [download]

Recke, R., U. Latacz-Lohmann and H. Wolff (2002): Pfadabhängigkeit und Umstellung auf ökologischen Landbau - eine empirische Studie. In: Brockmeier, M., F. Isermeyer and S. v Cramon Taubadel, (Eds.): Liberalisierung des Weltagrarhandels – Strategien und Konsequenzen. Schriften der Gesellschaft für Wirtschafts- und Sozialwissenschaften des Landbaues e.V., Band 37, Münster-Hiltrup, pp. 503-508. [download]

Villalobos, P. and H. Wolff (2002): Disposición a Pagar para un Fondo de Protección Ambiental en Zonas Rurales de Chile - Concepto y Aplicación. Conference 7° Encuentro Científico sobre el Medio Ambiente "El Circulo Virtuoso del Desarrollo Sustentable" 28 al 30 de Mayo 2002.[download en español]

Heckelei, T. and H. Wolff (2001): A Methodological Note on the Estimation of Programming Models. Technical Working Paper 104 of the International Marketing Program for Agricultural Commodities & Trade (IMPACT), Washington State University, Pullman.[download]

Sander, R., H. Wolff, W. Britz and Th. Heckelei (2000): Die Veränderung der regionalen Wettbewerbsfähigkeit der Ölsaaten- und Getreideproduktion unter dem Einfluß der GAP 1992 - Analyse auf Grundlage einer EU-weiten, regionalisierten Datenbasis. In: V. Alvensleben, R., Koester, U. and C. Langbehn: Wettbewerbsfähigkeit und Unternehmertum in der Land- und Ernährungswirtschaft, Schriften der Gesellschaft für Wirtschafts- und Sozialwissenschaften des Landbaues e.V., Band 36, pp. 21-28, Münster-Hiltrup. [A draft - presented at the 40th conference of GeWiSoLa 1999 in Kiel, October 1999 - can be downloaded here.]

Wolff, H. (1999): Economics of Tomato Production with special Reference to Aspects of Plant Protection: A Case Study of Two Tomato Production Systems in Brong-Ahafo Region, Ghana - CD included with two Scenario Programmes written in Excel and Visual Basic, prepared for: Ghanaian-German Project for Integrated Crop Protection, GTZ, Eschborn. 131 pages.