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| Ngwenya, S.A.; Battese, George E.; Fleming, Euan M.. |
| Farm-level data for the 1988/89 agricultural year from a sample survey of wheat farmers in Eastern Free State, are analysed in this paper. Stochastic frontier production functions are estimated, in which the technical inefficiency effects are modelled in terms of the size of the farming operation and other explanatory variables. The technical inefficiency effects for the farmers involved are significant and the null hypothesis that the explanatory variables in the model for the inefficiency effects have zero coefficients is rejected. The technical inefficiency effects are negatively and significantly related to the size of the farms. Elasticities of mean outputs with respect to the different inputs, together with the technical efficiencies of the wheat... |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries; Farm Management. |
| Ano: 1997 |
URL: http://purl.umn.edu/54444 |
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| Coelli, Tim J.; Battese, George E.. |
| The agricultural production of Indian farmers is investigated using a stochastic frontier production function which incorporates a model for the technical inefficiency effects. Farm-level data from the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) are used. Variables considered in the model for the inefficiency effects include the age and level of education of the farmers, farm size and the year of observation. The parameters of the stochastic frontier production function are estimated simultaneously with those involved in the model for the inefficiency effects. This approach differs from the usual practice of predicting farm-level inefficiency effects and then regressing these upon various factors in a second-stage of... |
| Tipo: Journal Article |
Palavras-chave: International Development; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 1996 |
URL: http://purl.umn.edu/22395 |
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| Battese, George E.; Francisco, Emilio M.. |
| A review of crop-insurance schemes is followed by a discussion of a guaranteed-yield, crop-insurance plan. General formulae for the distribution function and mathematical expectation of indemnities for the insurance plan are presented in terms of the distribution of crop yields. Three special cases are considered in which the original yields, the square root of yields, and the logarithm of yields are normally distributed. The insurance plan is applied on a regional basis for wheat and sorghum production in N.S.W. Given distributional information on the crops obtained from a simulation model, expected indemnities are calculated for four different insurance plans. |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries; Risk and Uncertainty. |
| Ano: 1977 |
URL: http://purl.umn.edu/22485 |
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| Battese, George E.; Corra, Greg S.. |
| This paper considers a statistical model for a production frontier that is consistent with the traditional (nonstochastic) definition of a production function given in microeconomic theory. Limiting cases of the model are the familiar average production function and an envelope production function. Maximum-likelihood estimators for the parameters of the model are defined. The three related models are applied in the estimation of a production frontier for the Pastoral Zone of Eastern Australia with use of data from the Australian Grazing Industry Survey. |
| Tipo: Journal Article |
Palavras-chave: Production Economics. |
| Ano: 1977 |
URL: http://purl.umn.edu/22266 |
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| Duloy, J.H.; Battese, George E.. |
| In livestock feeding experiments the problem of recursiveness arises because the quantity of feed consumed by an animal is a function of its past history of feeding. The problem is most acute where experiments are designed to analyse sub ad lib feeding. The analysis of such experiments encounters two important problems. The first is that the actual quantity of feed consumed is an endogenous variable and is not directly under the control of the experimenter or the livestock producer. The second problem is the mathematical complexity of the relationships involved. A solution is suggested as a quasi reduced-form model. |
| Tipo: Journal Article |
Palavras-chave: Livestock Production/Industries. |
| Ano: 1967 |
URL: http://purl.umn.edu/22749 |
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| Battese, George E.. |
| The significance of statistical lack-of-fit tests for hypothesized response functions describing experimental data is traced in some of the recent agricultural economics literature. The statistical test is reviewed in a regression framework and it is shown that the test is related to testing that some of the coefficients in a linear regression model have zero values. Comments are made on the relationship between the lack-of-fit test and the coefficient of determination. |
| Tipo: Journal Article |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 1977 |
URL: http://purl.umn.edu/9116 |
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