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Agent-based Analysis of Agricultural Policies: an Illustration of the Agricultural Policy Simulator AgriPoliS, its Adaptation and Behavior Ecology and Society
Happe, Kathrin; Leibniz Institute of Agricultural Development in Central and Eastern Europe; happe@iamo.de; Kellermann, Konrad; Leibniz Institute of Agricultural Development in Central and Eastern Europe; kellermann@iamo.de; Balmann, Alfons; Leibniz Institute of Agricultural Development in Central and Eastern Europe; balmann@iamo.de.
This paper combines agent-based modeling of structural change with agricultural policy analysis. Using the agent-based model AgriPoliS, we investigate the impact of a regime switch in agricultural policy on structural change under various framework conditions. Instead of first doing a sensitivity analysis to analyze the properties of our model and then examining the introduced policy in an isolated manner, we use a meta-modeling approach in combination with the statistical technique of Design of Experiments to systematically analyze the relationship between policy change and model assumptions regarding key determinants of structural change such as interest rates, managerial abilities, and technical change. As a result, we observe that the effects of...
Tipo: Peer-Reviewed Reports Palavras-chave: Agent-based modeling; Agricultural policy analysis; Empirical-based simulation; Experimental design; Farm structures; Meta-modeling..
Ano: 2006
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Commercialization and Subsistence in Transaction Agriculture: Empirical Evidence from Albania, Bulgaria, Hungary and Romania AgEcon
Mathijs, Erik; Noev, Nivelin.
Present-day Central and Eastern European agriculture is characterized by a high incidence of small-scale farmers who are not producing for the market. This paper uses household level data from comparative farm surveys in Albania, Bulgaria, Hungary and Romania to analyze which farm household characteristics and endowments influence commercialization and subsistence farming.
Tipo: Conference Paper or Presentation Palavras-chave: Subsistence farming; Farm structures; Farm size; Microanalysis; Land ownership; Land tenure; Agricultural policy; Transition; Agribusiness.
Ano: 2002 URL: http://purl.umn.edu/24786
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How do agricultural policies influence farmland concentration? The example of France AgEcon
Piet, Laurent; Desjeux, Yann; Latruffe, Laure; Le Mouel, Chantal.
Over the last decades, the number of farms has decreased while average farm size has increased in industrialised countries. We investigate whether these two concomitant trends have resulted in higher farmland concentration or not in the case of France. Deriving Gini coefficients as a measure of concentration from the estimation of parametric Lorenz curves, we show that this is not systematically the case at the sub-national scale of “départements”. When studying the role of possible explanatory variables for farmland concentration, we find that milk quotas, CAP 2nd pillar subsidies and so-called structural measures (settlements and early retirement grants) have a significant impact. However, the availability and the price of agricultural land appear to be...
Tipo: Conference Paper or Presentation Palavras-chave: Farmland concentration; Farm structures; Agricultural policies; Gini coefficient; France; Agricultural and Food Policy; Farm Management; Land Economics/Use.
Ano: 2010 URL: http://purl.umn.edu/61349
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