Project co-ordination: Alexander Gocht

Disaggregation by farm type mainly aims to capture heterogeneity in farming practises and farms within a region, in order to reduce aggregation bias in response to policy and market signals, with a focus on farm management, farm income and environmental impact. The argument is especially striking when policy instruments are either targeting specific farm types or are modulated depending on farm characteristics.

• Unordered List ItemFull integration in the CAPRI modelling chain

• This which ensures price feedback based on sequential calibration with the global, large-scale market model. Linking these other farm models to existing market models is far from easy due to differences in product definitions, but also due to the missing match to the data sets underlying market models, questions of IT integration notwithstanding.

• The strict and consistent top-down disaggregation

• This ensures a harmonized data set across regional scales and farm types.

• A farm type is a supply module

The supply model for each farm type and each region consists of independent aggregate non linear programming models, representing as an aggregate all activities of all farms falling into that type and a specific administrative regional unit at Nomenclature of Territorial Units for Statistics level II (NUTS2).

Farm supply models, similar to the regional ones, capture the premiums paid under the CAP, NPK balances and a module with feeding activities covering nutrient requirements of animals. Constraints, besides the feed block, relate to arable land and grassland in form of a land supply curve, set-aside obligations and milk quotas (baseyear).

Prices are exogenous in the supply module and provided by the market module, with which they are solved sequentially until convergence. Grass, silage and manure are assumed to be non-tradable and receive internal prices based on their substitution value and opportunity costs.

A maximum of nine of the most important farm types per region, plus they always include a residual farm type to exhaust regional production as well as input and primary factor use defined by a selction routine developed in close cooperation with IPTS-SUSTAG

Table 1: Type of Farming groups and Economic size classes in CAPRI.

The up to nine farm groups are characterized by “type of farming,” see Table 1, defined by the relative contribution of different production branches to the gross margin of the farm (European Commission, CD 85/377/EEC, Article 6), and the “economic size class” based on “European size units” (ESU), a concept defined in Chapter IV Article 8 in CD 85/377/EEC and Annex III.

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

Gocht, Alexander; Britz, Wolfgang; Ciaian, Pavel; Gomez y Paloma, Sergio (2011):
EU-wide distributional effects of EU Direct Payment Harmonization analyzed with CAPRI : paper prepared for presentation at the EAAE 2011 Congress Change and Uncertainty ; challenges for agriculture, food and national resources, August 30 to September 2, 2011 ETH Zurich, Zurich, Switzerland

Gocht, A., and Britz, W. (2011):
EU-wide farm type supply models in CAPRI - How to consistently disaggregate sector models into farm type models.
Journal of Policy Modeling (2010), 33(1), pp 146-167

Gocht, A., Britz, W., Adenäuer, M. (2011):
//Farm level policy scenario analysis// Luxembourg: Publications Office of the European Union, 80 Seiten, JRC scientific and technical reports 64334

Moreddu, Catherine; Martini, Roger; Kimura, Shingo; Britz, Wolfgang; Gocht, Alexander; Pérez Dominguez, Ignacio; Hart, Kaley; Baldock, David (2011) Evaluation of agricultural policy reforms in the European Union. :
//Evaluation of Agricultural Policy Reforms in the European Union// Paris: OECD, 180 pages

Renwick, A., Jansson, T., Verburg, P., Revoredo-Giha C.; Britz, W., Gocht, A., McCracken, D. (2011):
Impact of agricultural and trade policy reform on land-use within the EU: paper prepared for presentation at the EAAE 2011 Congress Change and Uncertainty ; challenges for agriculture, food and national resources, August 30 to September 2, 2011 ETH Zurich, Zurich, Switzerland. Zürich

Renwick A., Jansson T., Verburg P.H., Revoredo-Giha C., Britz W., Gocht A. and McCracken D.:
Policy Reform and Agricultural Land Abandonment
Paper presented at 85th Annual Conference of the Agricultural Economics Society, Warwick University, U.K., 18 - 20 April 2011

Gocht, A. and Britz, W. (2010)
EU-wide farm types supply in CAPRI - how to consistently disaggregate sector models into farm type model
Selected paper at 50. Jahrestagung der Gesellschaft für Wirtschafts- und Sozialwissenschaften des Landbaues e.V., 29.9.-1.10.2010, Braunschweig, Germany

Gocht, A., Pérez Domínguez and Cristoiu A (2010) Update of a quantitative tool for farm systems level analysis of agricultural policies, JRC Scientific and Technical Reports, Institute for Prospective Technological Studies, Seville, EUR 24321 EN