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Abstract
The aim of this paper is to evaluate the substitution of capital for labour in commercial farms focused on
livestock production in Poland in the years 2009-2011. The researches were conducted based on empirical
data unit from Polish FADN classified into types of farming “Dairy farms” and “Granivores”. Survey was
made using of Cobb-Douglass production function. The results show that in the period substitution of capital
for labor was effective in both types of farms. A comparative analysis indicates that the marginal rates of
capital for labour substitution was more favorable in the dairy farms than granivores.