agriculture modeling Articles
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Assessing the prediction capacity of an agricultural supply positive mathematical programming model
In this paper, the calibration and prediction capacity of a supply response positive mathematical programming model (PMP) for the Alentejo region are evaluated. The model is calibrated with prices and agricultural subsidies of the base year (2000), using the specification rules of the cost function standard, Paris standard, average cost and exogenous elasticities. Then, the model is utilised for ...
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World cotton markets liberalisation and cotton trade in Sudan
In this paper, the impact of full liberalisation of world cotton markets on Sudan and some selected African countries was estimated. Last version of Agricultural Trade Policy Simulation Model was applied. The results indicate that the liberalisation of cotton markets will lead to an increase in the world market price of cotton, which will have positive impact on the production and trade of the ...
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Innovative farm policies and their impact in a French frontier zone: reviving old conflicts in Guadeloupe (FWI)?
Society now expects agriculture to fulfil new functions to improve quality of life. This requirement has been reinforced by recent crises. The 1999 French Agricultural Framework Law (LOA) formalised agricultural multifunctionality and included payments to farmers for new practices, which satisfy both social and environmental functions, in addition to economic ones. A voluntary territorial farm ...
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Common agricultural policy (CAP) and measures for environment protection and conservation: contrasts, balances and new methods of development for the future
In the European Union, the problem of the relationship between agriculture and environment has been dealt with following two policies: one aimed at defining a system of rules to limit the risk of environment pollution and decay; the other, mainly aimed at accompanying CAP's reform process. This evolution has concurred to strengthen the idea that agriculture as a means of ensuring environment ...
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The challenge of integrating EU and Turkish agricultural markets and policies
This paper addresses the potential consequences of a political and economic integration of EU and Turkish agriculture and evaluates the resulting challenges. Simulation models reveal declining agricultural prices for Turkey in the case of market integration with the EU. This would lead to less production, more consumption and Turkey becoming a net importer of agricultural products. Resulting ...
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Cold Turkey? Dealing with agricultural trade liberalisation
Turkey has a particular interest in the WTO agricultural negotiations in view of its significant agricultural sector. This paper undertakes a quantitative analysis of trade liberalisation and its impact on Turkish agriculture. We use UNCTAD's Agricultural Trade Policy Simulation Model (ATPSM). A likely scenario suggests that Turkey may face higher import bills as world prices for cereals are ...
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Farm planning in nitrate sensitive agricultural areas
One of the main aims of the Rural Development Plan under the EU Common Agricultural Policy is the protection of nitrate sensitive areas through agri–environmental schemes. This paper presents a mathematical programming model for farm planning in agricultural areas that are sensitive to nitrates. A bilevel linear programming (BLP) model is developed, that can achieve the optimal farm production ...
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Modelling Common Agricultural Policy–Water Framework Directive interactions and cost-effectiveness of measures to reduce nitrogen pollution
Selecting cost-effective measures to regulate agricultural water pollution to conform to the Water Framework Directive presents multiple challenges. A bio-economic modelling approach is presented that has been used to explore the water quality and economic effects of the 2003 Common Agricultural Policy Reform and to assess the cost-effectiveness of input quotas and emission standards against ...
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Sheep–for–meat farming systems in French semi–upland area. Adapting to new context: increased concentrates and energy prices, and new agricultural policy
We used simulation to study how three French sheep production systems could adapt to a new context created by a surge in cereal prices associated with changes in common agricultural policy support. The evaluation criteria were economic performance, energy efficiency, emissions of greenhouse gases, and sensitivity to technical and economic fluctuations. We found the most intensive system was the ...
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Building a static farm level spatial microsimulation model for rural development and agricultural policy analysis in Ireland
Using statistical matching techniques, economists can now create attribute rich datasets by matching across the common variables in two or more datasets. The farm level spatial microsimulation model developed in this paper uses one of many combinational optimisation techniques – simulated annealing – to match the Irish Census of Agriculture to the 2005 Irish National Farm Survey (NFS). Using the ...
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Regional economic integration and trade: an empirical evaluation of NAFTA and EU
Generally, trade flows of commodities are determined on the basis of the principle of comparative advantage in a free trade system. The objectives of this study are to evaluate factors affecting the export flows and to provide a comprehensive analysis of the effects of trade enhancing and resisting factors used by exporting countries on world trade. The gravity model has been used to evaluate ...
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