Current Working Papers

• Bike Sharing, Bike Infrastructure and Congestion - Evidence from NYC’s Citibike, with Stefanie Braun and Stephen Rouse

• Land-use Behavior under the Rise and Fall of Payment for Environmental Services: Ecuador’s Socio Bosque Program, with Tanya Hayes

• Does Daylight Saving Time burn Fat? Time Allocation with Continuous Activities, with Momoe Makino. Revise and Resubmit at Economica. An older IZA Discussion Paper version can be found here

• Do Carbon Taxes Kill Jobs? Firm-Level Evidence from British Columbia, Revisions requested at Canadian Journal of Economics. With Deven Azevedo and Akio Yamazaki.

• A New Open Data Framework for Mobility as a Service

• Choking Behind the Wheel: The Effect of Air Pollution on Vehicle Accidents , with Maximilian Auffhammer and Maoyong Fan.

• Negative Externalities of America's Toughest Immigration Law: Not So Sweet Home Alabama, with Eric Adebayo

Published Articles

• Zhai, M., Wolff, H. (2021): Air Pollution and Urban Road Transport: Evidence from the World's Largest Low Emission Zone in London. Environmental Economics and Policy Studies. Forthcoming.

• Johnsen, R., LaRiviere, J. and Wolff, H. (2019): Fracking, Coal and Air Quality, Journal of the Association of Environmental and Resource Economics.

• Hayes, T., Murtinho, F. and Wolff, H. (2017): The Impact of Payments for Environmental Services on Communal Lands, World Development

• Albouy, D., W. Graf, R. Kellogg and Wolff, H. (2016): Climate Amenities, Climate Change, and American Quality of Life, Journal of the Association of Environmental and Resource Economists. Also available as NBER Working Paper here

• Wolff, H. (2016): Imposing and Testing for Shape Restrictions in Flexible Parametric Models, Econometric Reviews, Doi: 10.1080/07474938.2014.975637

• Alam, S. and Wolff, H. (2016): Do Pesticide Sellers Make Farmers Sick? Information Sources, Health, and Adoption of Technology in Bangladesh, Journal of Agricultural and Resource Economics

• LaRiviere, J. and Wolff, H. 2015): The Power of the Little Blue Pill: Innovations and Implications of Life Style Drugs in an Aging Population, Economic Inquiry, Vol. 53(1), pp. 540-556.

• Hayes, T. and Murtinho, F. and Wolff, H. (2015): An institutional analysis of Payment for Environmental Services on collectively managed lands in Ecuador, Ecological Economics , Vol. 118, pp. 81-89

• Wolff, H. (2014): Keep Your Clunker In The Suburb: Low Emission Zones and Adoption of Green Vehicles, Economic Journal, Vol. 124(578), pp. F481-F512.

  • Online Supplemental Material of the article is here, 19 pages

• Alix-Garcia, J and Wolff, H. (2014): Payment for Ecosystem Services from Forests, Annual Review of Resource Economics, Vol. 6, pp. 361-380.

• Wolff, H. (2014): Value of Time, Speeding Behavior and Gasoline Prices, Journal of Environmental Economics and Management, Vol. 67(1), pp. 71-88.

  • Online Supplemental Material of the article is here, 14 pages

• Watkins, K and Wolff, H. (2013): Analysis of Heterogeneous Speeding Behavior with Hourly Washington State Data”, Transportation Research Record: Journal of the Transportation Research Board, Vol. 2375, pp. 29-36. Doi: 10.3141/2375-04

• Wolff, H., H. Chong and M. Auffhammer (2011): Classification, Detection and Consequences of Data Error: Evidence from the Human Development Index, Economic Journal, Vol. 121, pp.843-870. Online web version including supplemetal material available as NBER version here

  • In public media: The Economist, January 6, 2011, printed version

    • Reaction by the United Nations Human Development Report Office: here

• Fuchs, A and H. Wolff (2011): Concept and Unintended Consequences of Weather Index Insurance, American Journal of Agricultural Economics 93(2): 505–511

• Wolff, H., T. Heckelei and R.C. Mittelhammer (2010): Imposing Curvature and Monotonicity on Flexible Functional Forms, Computational Economics, 36(4), pp. 309-339

  • Online Web Appendix of the Article "Imposing Curvature and Monotonicity on Flexible Functional Forms", 119 pages

  • Download GAUSS code to run simulations of article

• Wolff, H. and L. Perry (2010): Trends in Clean Air Legislation in Europe: Particulate Matter and Low Emission Zones, Review of Environmental Economics and Policy, 4(2), pp. 293-308

• Kellogg, R. and H. Wolff (2008): Daylight time and energy: Evidence from an Australian experiment, Journal of Environmental Economics and Management, 56(3), 207-20 [lead article].

  • Paper won the Best Paper of the Year Award at the Association of Environmental and Resource Economics, 2009 Ralph C. d'Arge and Allen V. Kneese Award for Outstanding Publication in the Journal of Environmental Economics and Management

  • Online Supplemental Appendix

  • In public media: ABC Evening Video News, Wall Street Journal 2014, US News, Bloomberg, Chicago Tribune, Guardian (UK), Neue Zuercher Zeitung (CH), ABC Australia

  • I consulted for the DoE to report to the U.S. Congress on the status of DST. See the published reports here (21 pages) and here (175 pages)

• 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.

• 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 Submissions

• Wolff, H. et al. (2019): Air Pollution in Mongolia: Opportunities for further Actions, Public Expenditure Review. UNDP. Published September 18, 2019, 110 pages.

• Wolff, H. and Torben Jensen (2017): The Video Method: Empowering and Controlling Learning Environments in a Predominantly ESL (English as a second Language) Classroom. Institute for the Study of Teaching and Learning in the Disciplines.

  • a motivational video: click here   

• Fuchs, A. and H. Wolff (2016): “Drought and Retribution: Evidence from a Large-Scale Rainfall-Indexed Insurance Program in Mexico”. World Bank Policy Research Working Papers, 9450-7565, Vol. 41(1), pp. 62–80.

• Independent Panel Review of the Doing Business Report, with Arruda, C., Azour, J., Bai, C., Timothy Besley, Cho, D., Sergei Guriev, Labelle, H., Landau, J., Maira, A. and Trevor, M. (2013)

  • This publication is part of my work as Member of the "Independent Panel". From : About the Independent Panel: The President of the World Bank Group [Dr. Jim Yong Kim] has appointed an independent Panel of experts to conduct a review of the Doing Business report, one of the Bank's most prominent global reports. For more information on the Panel read the Press Release announcing the creation of the independent Panel and its terms of reference here.

  • in press: Reuters, Guardian, The Economist, Wall Street Journal, Financial Times 1, Financial Times 2

• 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.

• 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.

• 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.

• 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]

• 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.