Substytucyjność czynników produkcji w przemyśle spożywczym w Polsce

The article presents the results of parameter estimation of production function in food industry in Poland. Author also calculated the marginal productivity of factors of production and used the marginal rate of substitution as a measure of substitution. It was stated that the output elasticity is higher with regard to labour input than to capital input. It means that exist way to obtain bigger growth in production in food industry by increasing labour input. Moreover, in some branches of food industry the value of marginal rate of substitution indicates that decrease of labour input by one unit requires significant increase of capital input in order to maintain the previous level of production.