A MICRO‐ECONOMIC ANALYSIS OF TEA PRODUCTION USING A SEPARABLE RESTRICTED PROFIT FUNCTION
利用可分离受限利润函数模型，分析了斯里兰卡54个茶园87组数据，发现工厂规模经济递增，最优田间规模为300-400公顷，短期茶叶供给弹性为+0.94。
To derive policy‐relevant information, the translog form of a separable restricted profit function was used to model empirically estate tea production in Sri Lanka. Data consisted of 87 observations of prices and quantities for various inputs and outputs from 54 different Sri Lankan tea estates. In different tests, the estimated model respected generally the properties implied by underlying assumptions. Results indicated increasing economies of scale in the factory across the sample and optimal field size to be between 300 and 400 hectares. Amongst estimated short‐term elasticities, the supply elasticity of made tea was found to be +0.94.