capri:concept:farmtypes []

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<H2>Farm Type Layer in CAPRI</H2>

Project co-ordination: <A href= http://www.capri-model.org/dokuwiki/doku.php?id=capri:team:alex_gocht> Alexander Gocht </A>

<P>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. <H3>Characteristics of the farm types in CAPRI</H3> <LI>Full integration in the CAPRI modelling chain</LI> 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. <P> <LI>The strict and consistent top-down disaggregation</LI> This ensures a harmonized data set across regional scales and farm types. <P> <LI>A farm type is a supply module</LI> 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). <P> <LI>Features of the supply model</LI> 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). <P> <LI>Prices</LI> 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.

<H3>Coverage</H3>

<LI>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</LI>

<table border=“0” width=100% div id=“table” style=“text-align: 'left';” bgcolor=#FFFFFF> <caption>Table 1: Type of Farming groups and Economic size classes in CAPRI.</caption> <tr><th width=“40%”>Type of farming</th> <th width=“10%”>abbr.<th width=“40%”>Economic size class</th><th width=“10%”>abbr.</th></tr> <tr><td>Specialist cereals, oilseed and protein crops </td> <td>13</td> <td>less than 16 ESU</td> <td>ESC 1 </td> </tr> <tr><td>General field cropping + Mixed cropping </td> <td>14_60 </td> <td> greater equal 16 and less than 100 ESU</td> <td> ESC 2 </td> </tr> <tr><td>Specialist horticulture</td> <td> 20 <td>greater equal 100 ESU</td> <td>ESC 3</td> </tr> <tr><td>Specialist vineyards</td> <td>31</td> </tr> <tr><td>Specialist fruit and citrus fruit</td> <td> 32 </td> </tr> <tr><td>Specialist olives </td> <td>33 </td> </tr> <tr><td>Various permanent crops combined </td><td> 34 </td> </tr> <tr><td>Specialist dairying </td> <td>41</td> </tr> <tr><td>Specialist cattle + dairying rearing, fattening </td><td> 42_43</td> </tr> <tr><td>Sheep, goats and otder grazing livestock </td><td>44</td></tr> <tr><td>Specialist granivores </td><td>50 </td> </tr> <tr><td>Mixed livestock holdings </td><td> 70</td> </tr> <tr><td>Mixed crops-livestock </td><td> 80 </td></tr> </table>

<P> <LI> 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. </LI> <P> <H3>Applications</H3>

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