The Intercountry Agricultural Production Function: Another View

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Abstract
Factor productivity in agriculture is estimated from repeated observations on a sample of fifty‐eight countries under the assumption that all countries have access to the same technology. Technology is viewed as a collection of techniques; each technique is represented by a production function. The choice of the implemented techniques is determined by the state variables, which represent the physical and economic environment within which the firms operate. The statistical model is that of varying coefficients, and it is estimated by a method which utilizes principal components and multiple comparisons.

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