Assessing the inputs of labour to real GDP growth rates involves calculating initially the relevant coefficient of elasticity in the two-factor production function. Assuming that production factor prices depend on their marginal productivity, the coefficient is measured by the relative share of labour in income whereas under the assumption of constant returns to scale its sum with the capital coefficient gives 1.
The paper employs two modifications of income. According to one of them income is not identified with GDP but with the sum of compensations of employees, net operating surplus and net mixed income. The concrete calculation of labour’s relative share in income then is done following two approaches (see Table 1). According to the first approach it is equal to the weight of compensations of