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| Shumway, C. Richard; Jegasothy, Kandiah; Alexander, William P.. |
| Technical change and the extent to which commodity supplies and input demands are interrelated in Sri Lankan peasant agriculture are explored in this paper. Using a multiple-product dual model, a seemingly unrelated system of product supply and input demand equations is estimated for four crops and four variable inputs. Restrictions based on competitive behaviour and a twice continuously-differentiable production function are maintained in the non-linear least squares estimation. A number of important interrelationships in individual product supplies and input demands are identified, further documenting the need to account for intercommodity production relationships in econometric and simulation studies and in policy formulation. Non-joint production and... |
| Tipo: Journal Article |
Palavras-chave: Productivity Analysis; Research Methods/ Statistical Methods. |
| Ano: 1988 |
URL: http://purl.umn.edu/22575 |
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| Shumway, C. Richard; Alexander, William P.; Talpaz, Hovav. |
| Some implications of theory are easily maintained in econometric estimation, but computational costs of maintaining curvature properties (sufficient for existence of an optimal solution) have often proved prohibitive. They also have been violated frequently by unrestricted econometric estimates. A computationally manageable procedure for maintaining and testing curvature is used here to obtain estimates of product supplies and input demands for Texas field crops consistent with the theory of the competitive industry. The curvature properties are tested along with several technology restrictions. |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries. |
| Ano: 1990 |
URL: http://purl.umn.edu/32502 |
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