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Farm-level Acreage Allocation under Risk AgEcon
Polome, Philippe; Harmignie, Olivier; Frahan, Bruno Henry de.
We model the area allocation decision problem for a fixed size crop farm under random yields and prices for a risk-averse farmer. We assume that in the short run, the variable input expenses are fixed per hectare and per crop (an assumption that is motivated by our data). Therefore the cost function depends only on the non-stochastic area allocation. The first order conditions of the model involve integrals across functions of random variables that do not in general have closed form solutions. Numerical simulation techniques are used to calibrate the parameters of the cost function. The two sources of randomness, price and yield, are combined into a single random variable, the yield-in-value. Based on examination of panels of yield-in-value data, we assume...
Tipo: Conference Paper or Presentation Palavras-chave: Risk and Uncertainty.
Ano: 2006 URL: http://purl.umn.edu/21306
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Multi-input Multi-output Farm-level Cost Function: A Comparison of Least Squares and Entropy Estimators AgEcon
Polome, Philippe; Fernagut, Bruno; Harmignie, Olivier; Frahan, Bruno Henry de.
We introduce a modification of the quadratic-Leontieff multi-output cost function that is particularly suitable for the data of the Farm Accountancy Data Network. We present least squares and entropy estimates of that function and compare their results for a sample of crop farms. Our results are encouraging for the use of entropy estimators in cases in which farms are not assumed to share the same technology. Our approach can be seen as an extension of the Positive Mathematical Programming approach (Howitt, 1995). The extension consists in an explicit specification of inputs in the cost function and in the possibility of modeling several farms simultaneously.
Tipo: Working or Discussion Paper Palavras-chave: Cost function; Least squares estimator; Entropy estimator; Heterogeneity; Farm Management; C3; D61; Q12.
Ano: 2005 URL: http://purl.umn.edu/24727
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