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Policy impact assessment of the Common Agricultural Policy and related policy fields



This research line analyzes quantitatively economic, social and environmental impacts of policies, often in inter-disciplinary teams, and develops methodological approaches for quantitative impact assessments. The development and application of large-scale economic simulations models such as the CAPRI modelling system to questions related to trade policies and domestic support is since years a trademark of our team, even before Thomas Heckelei headed the group.


By now, the portfolio of methods and tools for policy impact assessment has diversified, as visible from the projects and publications below, with an increasing focus on agri-environmental interactions.


Besides activities related to larger third party funded research projects, team members are also regularly involved in smaller projects with national and international partners where we contribute our methodological and topical expertise in policy analysis. This research line is closely related to our research line on analysis of trade and market policies, and partly overlaps with research on dairy.

Methodological work on quantitative methods for policy impact assessment, with research fields such as the econometric estimation of optimization models, model linkage or scale changes, is described in an own research line, albeit a clear differentiation between methodological development and policy relevant applications both in projects and publications is often neither possible nor helpful.

Selected Research Projects

Selected publications

Journal articles

Storm, H., Mittenzwei, K., Heckelei, T. (2015): Direct Payments, Spatial Competition, and Farm Survival in Norway , American Journal of Agricultural Economics 97(4): 1192-1205 , Link.

Schroeder, L. A., Gocht, A., Britz, W. (2015): The Impact of Pillar II Funding: Validation from a Modelling and Evaluation Perspective , Journal of Agricultural Economics 66(2): 415–441 , Link.

Mittenzwei, K., Britz, W., Wieck, C. (2014): Does the “green box” of the European Union distort global markets? , Bio-based and Applied Economics 3(1) : 1-20 , Link.

Pelikan, J., Britz, W., Hertel, T. W. (2015): Green Light for Green Agricultural Policies? An Analysis at Regional and Global Scales , Journal of Agricultural Economics 66(1):1-19 , Link.

Wieck, C., Annen, D. N. (2013): Understanding farmers’ participation in and compliance with public and private standards, Food Economics 9(4): 199-214 , Link.

Annen, D. N., Wieck, C., Kempen, M. (2013): Animal welfare in public and private standards and on-farm compliance , German Journal of Agricultural Economics 62(3): 157-172 , Link.

Gocht, A., Britz, W., Ciaian, P., Gomez y Paloma, S. (2013): Farm Type Effects of an EU-wide Direct Payment Harmonisation, Journal of Agricultural Economics 64(1): 1-32 , Link.

Renwick, A., Jansson, T., Verburg, P. H., Revoredo-Giha, C., Britz, W., Gocht, A., McCracken, D. (2013): Policy reform and agricultural land abandonment in the EU , Land Use Policy 30(1): 446-457 , Link.

Britz, W., Delzeit, R. (2013): The impact of German biogas production on European and global agricultural markets, land use and the environment , Energy Policy 62: 1268–1275 , Link.

Delzeit, R., Holm-Müller, K., Britz, W. (2012): Ökonomische Bewertung des Erneuerbare Energien Gesetzes zur Förderung von Biogas , Perspektiven der Wirtschaftspolitik 13(3): 251–265 , Link.

Britz, W., Gocht, A., Pèrez Dominguez, I., Jansson, T., Grosche, S., Zhao, N. (2012): EU-Wide (Regional and Farm Level) Effects of Premium Decoupling and Harmonisation Following the Health Check Reform , German Journal of Agricultural Economics 61(1): 44-56 , Link.

Delzeit, R., Britz, W., Holm-Müller, K. (2012): Modelling regional input markets with numerous processing plants: The case of green maize for biogas production in Germany , Environmental Modelling & Software 32: 74-84 , Link.

Kožar, M., Kempen, M., Britz, W., Erjavec, E. (2012): Flattening and redistribution of the CAP direct payments for the EU27 regions , Agric. Econ. – Czech 58: 397-407 , Link.

Britz, W., Hertel, T. W. (2011): Impacts of EU biofuels directives on global markets and EU environmental quality: An integrated PE, global CGE analysis , Agriculture, Ecosystems and Environment 142(1-2): 102-109 , Link.

Leip, A., Britz, W., Weiss, F., de Vries, W. (2011): Farm, land, and soil nitrogen budgets for agriculture in Europe calculated with CAPRI , Environmental Pollution 159(11): 3243-3253 , Link.

Annen, D. N., Wieck, C., Kempen, M. (2011): Evaluation of minimum animal welfare conditions in national standards and farm certification schemes for pig fattening, Acta Agriculturae Scandinavica, Section A - Animal Science 61(1): 40 - 54 , Link.

Velthof, G. L., Oudendag, D. A., Witzke, H.-P., Asman, W. A., Klimont, Z., Oenema, O. (2009): Integrated Assessment of Nitrogen Losses from Agriculture in EU-27 using MITERRA-EUROPE , Journal of Environmental Quality 38: 402-417 , Link.

Pèrez Dominguez, I., Britz, W., Holm-Müller, K. (2009): Trading Schemes for Greenhouse Gas Emissions from European Agriculture: A Comparative Analysis based on different Implementation Options , Review of Agricultural and Environmental Studies 90(3): 287-308 , Link.

Oenema, O., Witzke, H.-P., Klimont, Z., Lesschen, J. P., Velthof, G. L. (2009): Integrated assessment of promising measures to decrease nitrogen losses from agriculture in EU-27 , Agriculture, Ecosystems and Environment 133(3-4): 280-288 , Link.

Breuer, T., Becker, A. (2008): Pflanzenöl als Kraftstoff - Rahmenbedingungen, Förderinstrumente und regionale Wertschöpfungspotenziale in Deutschland , Berichte aus der Landwirtschaft 86(2): 226-242.

Conference contributions and other publications

Britz, W., Heckelei, T. (2013): Modelling tools for policy Analysis: dimensions of reliability, invited paper presented at the 133rd EAAE-Seminar, June 14-15, 2013, Chania (Greece) Download.

Dwyer, J., Jansson, T., Buckwell, A., Allen, B., Britz, W. (2013): Modelling the regionalised impacts of CAP reform embracing both pillars – challenging path-dependent thinking in policy discourse? , selected paper presented at the The Agricultural Economics Society's 87th annual conference, April 8-10, 2013, Warwick (UK) , Link.

Schroeder, L. A., Britz, W., Gocht, A. (2013): Impact of second Pillar funding in Germany – Validation from a modelling- and an evaluation perspective , selected paper presented at the 133rd EAAE-Seminar, June 14-15, 2013, Chania (Greece).

Last updated: Thursday, November 07, 2019