An Analysis of the Cost Structure of Food Industries in Pakistan: An Application of the Translog Cost Function

Abstract

Given the importance of food industries in Pakistan, this study analyzes their cost structure by estimating the transcendental logarithmic cost function. The study also considers elasticity of substitution along with own-price elasticity and cross-price elasticity. Four factor inputs, i.e., labor, capital, energy, and materials, are used to estimate the cost function. The results indicate that materials account for the highest share of the cost. The elasticity of substitution of materials for capital and energy is also weak. The own-price elasticities indicate that the demand for materials is least responsive to a change in its own price while the demand for other inputs varies with price. The cross-price elasticities show that labor, capital and energy are substitutes for each other. The output elasticity of cost demonstrates the presence of economies of scale.