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Extending the GTAP Data Base and Model to Cover Domestic Support Issues using the EU as Example

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  • Urban, Kirsten
  • Hans Grinsted Jensen
  • Martina Brockmeier

Abstract

The EU Single Farm Payment (SFP) is currently distributed in proportion to primary factor shares in version 8 of the GTAP database. In this paper, we investigate whether this way of modeling the EU SFP makes a difference in analyzing agricultural policy reforms. To do so, we create alternative versions of the GTAP database to compare the effects with the default setting in GTAP. Employing OECD data, along with the GTAP framework, we vary the assumptions about the allocation of the SFP. In the process, we demonstrate how to alter and update the GTAP database to implement domestic support of OECD PSE tables. We provide a detailed overview supplemented with assumptions of payment allocation, shock calculations and in particular, the Altertax procedure to update value flows and price equations extended in the GTAP model. Subsequently, we illustrate the impact of those assumptions by simulating a 100% removal of the SFP using the deviating versions of GTAP database. This sensitivity analysis reveals strong differences in results, but particularly in production responses of food and agricultural sectors that decrease with an increasing degree of decoupling. Furthermore, our analysis shows that the effect on welfare and the trade balance decreases with an increasing degree of decoupling. This experiment shows that the allocation of the SFP can have strong impacts on simulation results.

Suggested Citation

  • Urban, Kirsten & Hans Grinsted Jensen & Martina Brockmeier, 2014. "Extending the GTAP Data Base and Model to Cover Domestic Support Issues using the EU as Example," GTAP Technical Papers 4569, Center for Global Trade Analysis, Department of Agricultural Economics, Purdue University.
    • Handle: RePEc:gta:techpp:4569
    Note: GTAP Technical Paper No. 35
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    1. Boysen-Urban, Kirsten & Boysen, Ole & Matthews, Alan & Brockmeier, Martina, 2018. "Alternative Instrumente Zur Einkommensabsicherung Für Die Gemeinsame Agrarpolitik Der Eu Nach 2020," 58th Annual Conference, Kiel, Germany, September 12-14, 2018 275909, German Association of Agricultural Economists (GEWISOLA).
    2. Ole Boysen & Kirsten Boysen-Urban & Alan Matthews, 2021. "Alternative EU CAP Tools for Stabilising Farm Incomes in the Era of Climate Change," Working Papers 202103, Geary Institute, University College Dublin.
    3. Gohin, Alexandre & Zheng, Yu, 2015. "Assessing the Market Impacts of the Common Agricultural Policy: Does Farmers’ Risk Attitude Matter?," 2015: Trade and Societal Well-Being, December 13-15, 2015, Clearwater Beach, Florida 229235, International Agricultural Trade Research Consortium.
    4. Urban, Kirsten & Jensen, Hans G. & Brockmeier, Martina, 2016. "How decoupled is the Single Farm Payment and does it matter for international trade?," Food Policy, Elsevier, vol. 59(C), pages 126-138.
    5. Pierre Boulanger & Kirsten Boysen-Urban & George Philippidis, 2021. "European Union Agricultural Support ‘Coupling’ in Simulation Modelling: Measuring the Sustainability Impacts," Sustainability, MDPI, vol. 13(6), pages 1-17, March.
    6. Ole Boysen & Ana Corina Miller & Alan Matthews, 2016. "Economic and Household Impacts of Projected Policy Changes for the Irish Agri-food Sector," Journal of Agricultural Economics, Wiley Blackwell, vol. 67(1), pages 105-129, February.
    7. Ole Boysen & Kirsten Boysen‐Urban & Alan Matthews, 2023. "Stabilizing European Union farm incomes in the era of climate change," Applied Economic Perspectives and Policy, John Wiley & Sons, vol. 45(3), pages 1634-1658, September.
    8. Ole Boysen & Hans Grinsted Jensen & Alan Matthews, 2016. "Impact of EU agricultural policy on developing countries: A Uganda case study," The Journal of International Trade & Economic Development, Taylor & Francis Journals, vol. 25(3), pages 377-402, June.
    9. Urban, Kirsten & Brockmeier, Martina & Jensen, Hans Grinsted, 2015. "Evaluating the Effect of Domestic Support on International Trade: A Mercantilist Trade Restrictiveness Approach," Conference papers 332615, Purdue University, Center for Global Trade Analysis, Global Trade Analysis Project.
    10. Alexandre Gohin & Yu Zheng, 2016. "Assessing the Market Impacts of the Common Agricultural Policy: Does Farmers' Risk Attitude Matter?," FOODSECURE Working papers 46, LEI Wageningen UR.
    11. Flaig, Dorothee & Boysen-Urban, Kirsten, 2019. "EU Agricultural Domestic Support in Global Value Chains or Where Does the Money Go?," Conference papers 333054, Purdue University, Center for Global Trade Analysis, Global Trade Analysis Project.
    12. Samiul Haque & Kenneth A. Foster & Roman Keeney & Kathryn A. Boys & Badri G. Narayanan, 2019. "Output and input bias effects of U.S. direct payments," Agricultural Economics, International Association of Agricultural Economists, vol. 50(2), pages 229-236, March.

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