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Registros recuperados: 10
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Estimating A Farm Group Model and Input Allocations Using Accountancy Data AgEcon
Gocht, Alexander; Heckelei, Thomas.
This paper proposes and applies an innovative estimation approach for farm group programming models using Generalised Maximum Entropy. The proposed set-up simultaneously determines calibrating cost function parameters and input allocations to production activities. The methodology is applied to Belgium FADN data of arable farms for which available input allocations allow to validate the estimation approach. Results outperform separate estimates of input allocations previously applied in the literature and this finding is robust with respect to support point design.
Tipo: Conference Paper or Presentation Palavras-chave: Mathematical programming; Input allocation; Production economics; Econometrics; GME; PMP; Agricultural and Food Policy; Farm Management; Land Economics/Use; Production Economics.
Ano: 2010 URL: http://purl.umn.edu/61393
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Estimating input allocation for farm supply models AgEcon
Gocht, Alexander.
When building an economic model for supply analysis the aim is to model a decision making process of one or more agents which fits the observed practice as good as possible. Hereby the modeller is often confronted with incomplete information about the production process; particular crop specific input data are rarely available. The problem of defining activity related technology inputs coefficients is not new. A good deal of literature comes from the mathematical programming perspective, where input coefficients were estimated using a standard linear regression function to fully represent the mathematical program. However this approach is a pure technical device and may result in an inconsistent model. The author of the paper wants to investigate whether...
Tipo: Conference Paper or Presentation Palavras-chave: Farm supply model; Input allocation; Entropy; HDP; Research Methods/ Statistical Methods.
Ano: 2008 URL: http://purl.umn.edu/6469
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EU-wide Distributional Effects of EU Direct Payments Harmonization analyzed with CAPRI AgEcon
Gocht, Alexander; Britz, Wolfgang; Ciaian, Pavel; Gomez y Paloma, Sergio.
We argue in this paper that available econometric estimates of farmers’ risk aversion do not measure true farmers’ preferences towards risky outcomes. Available analyses are mostly of static nature and indeed measure the parameters of the synthetic optimal value function rather than the deep parameters of the utility functions. We derive analytical and empirical results in a simple dynamic and stochastic framework showing that that there is not a simple relationship between utility functions and value functions when agents have many decision variables. In particular we find that the value function does not necessarily exhibit DARA when the instantaneous utility function satisfies DARA and conversely. We recommend performing dynamic econometric estimation...
Tipo: Conference Paper or Presentation Palavras-chave: Distributional effects; SPS; Flat-rate payment; CAP reform; Farm level model; CAPRI farm type layer; International Relations/Trade; Q11; Q12; Q18.
Ano: 2011 URL: http://purl.umn.edu/114624
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EU-WIDE FARM TYPES SUPPLY IN CAPRI - HOW TO CONSISTENTLY DISAGGREGATE SECTOR MODELS INTO FARM TYPE MODEL AgEcon
Gocht, Alexander; Britz, Wolfgang.
C3_3
Tipo: Conference Paper or Presentation Palavras-chave: EU-wide farm supply analysis; Highest posterior density estimator; CAPRI; Research Methods/ Statistical Methods.
Ano: 2010 URL: http://purl.umn.edu/93960
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Impact of Agricultural and Trade Policy Reform on land-use within the EU AgEcon
Renwick, Alan W.; Jansson, Torbjorn; Verburg, Peter H.; Revoredo-Giha, Cesar; Britz, Wolfgang; Gocht, Alexander; McCracken, Davy.
Tipo: Conference Paper or Presentation Palavras-chave: Land Economics/Use.
Ano: 2011 URL: http://purl.umn.edu/114800
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MUNICIPALITY DISAGGREGATION OF GERMAN'S AGRICULTURAL SECTOR MODEL RAUMIS AgEcon
Roeder, Norbert; Gocht, Alexander.
Since several decades the RAUMIS modelling system is applied for policy impact assessments to measure the impact of agriculture on the environment. A disaggregation at the municipality level with more than 9.000 administrative units, instead of currently used 316 counties, would tremendously improve the environmental impact analysis. Two sets of data are used for this purpose. The first are geo-referenced data, that are, however, incomplete with respect its coverage of production activities in agriculture. The second set is the micro census statistic itself, that has a full coverage, but data protection rules (DPR) prohibit its straightforward use. The paper show how this bottleneck can be passed to obtain a reliable modelling data set at municipality...
Tipo: Conference Paper or Presentation Palavras-chave: Highest Posterior Density estimator (HPD); RAUMIS; Down scaling; Agricultural and Food Policy; C11; C61; C81; Q15.
Ano: 2011 URL: http://purl.umn.edu/99248
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Policy Reform and Agricultural Land Abandonment AgEcon
Renwick, Alan W.; Jansson, Torbjorn; Verburg, Peter H.; Revoredo-Giha, Cesar; Britz, Wolfgang; Gocht, Alexander; McCracken, Davy.
This paper examines the potential impact of agricultural and trade policy reform on land-use across the EU focussing particularly on the issue of land abandonment. Using a novel combined application of the well established CAPRI and Dyna-CLUE models it estimates the extent of change across Europe under removal of Pillar 1 support payments and trade liberalisation. Overall, it is estimated that around 8 per cent less land will be farmed under these reforms than under the baseline situation. However, some regions, areas and farm types face more significant reductions. The reforms are particularly felt on livestock grazing farms situated in the more marginal areas of Europe, which also coincide with areas of high nature value. Therefore, farmland biodiversity...
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural Policy; Land Use Change; Land Abandonment; Agricultural and Food Policy.
Ano: 2011 URL: http://purl.umn.edu/108772
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RECOVERING LOCALIZED INFORMATION ON AGRICULTURAL STRUCTURE UNDERLYING DATA CONFIDENTIALITY REGULATIONS - POTENTIALS OF DIFFERENT DATA AGGREGATION AND SEGREGATION TECHNIQUES AgEcon
Gocht, Alexander; Roeder, Norbert.
The modelling and information system RAUMIS is used for policy impact assessment to measure the impact of agriculture on the environment. The county level resolution often limits the analysis and a further disaggregation at the municipality level would reduce aggregation bias and improve the assessment. Although the necessary data exists in Germany, data protection rules (DPR) prohibit their direct use. With methods such as the Locally Weighted Averages (LWA), and with aggregation singling production activities into larger groups of activities, the data at the municipality level can be made publicly available. However, this reduces the information content and introduces an additional error....
Tipo: Conference Paper or Presentation Palavras-chave: Highest Posterior Density estimator (HPD); RAUMIS; Locally weighted average (LWA); Research Methods/ Statistical Methods.
Ano: 2010 URL: http://purl.umn.edu/93975
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Salvage the treasure of geographic information in Farm census data AgEcon
Gocht, Alexander; Roder, Norbert.
In Germany, since several decades the RAUMIS modelling system is applied for policy impact assessments to measure the impact of agriculture on the environment. A disaggregation at the municipality level with more than 9.600 administrative units, instead of currently used 316 counties, would tremendously improve the environmental impact analysis. Two sets of data are used for this purpose. The first are geo-referenced data, that are, however, incomplete with respect its coverage of production activities in agriculture. The second set is the micro census statistic itself, that has a full coverage, but data protection rules (DPR) prohibit its straightforward use. The paper show how this bottleneck can be passed to obtain a reliable modelling data set at...
Tipo: Conference Paper or Presentation Palavras-chave: Highest Posterior Density estimator (HPD); RAUMIS; Down scaling; Research Methods/ Statistical Methods; C11; C61; C81; Q15.
Ano: 2011 URL: http://purl.umn.edu/115982
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Imprime registro no formato completo
Salvage the treasure of geographic information in Farm census data AgEcon
Gocht, Alexander; Roder, Norbert.
In Germany, since several decades the RAUMIS modelling system is applied for policy impact assessments to measure the impact of agriculture on the environment. A disaggregation at the municipality level with more than 9.600 administrative units, instead of currently used 316 counties, would tremendously improve the environmental impact analysis. Two sets of data are used for this purpose. The first are geo-referenced data, that are, however, incomplete with respect its coverage of production activities in agriculture. The second set is the micro census statistic itself, that has a full coverage, but data protection rules (DPR) prohibit its straightforward use. The paper show how this bottleneck can be passed to obtain a reliable modelling data set at...
Tipo: Conference Paper or Presentation Palavras-chave: Highest Posterior Density estimator (HPD); RAUMIS; Down scaling; Research Methods/ Statistical Methods; C11; C61; C81; Q15.
Ano: 2011 URL: http://purl.umn.edu/114824
Registros recuperados: 10
Primeira ... 1 ... Última
 

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