Declining labour share – Evidence of a change in underlying production technology?
AbstractThe study demonstrates that the decline in the labour share in Finland can not be explained by the Cobb-Douglas production function. Instead, we propose an approach based on the constant-elasticity-of-substitution (CES) production function with labour- and capital-augmenting technical progress. The model is augmented by imperfect competition in the output market. According to the empirical results based on estimation of the first-order-conditions, the technical elasticity of substitution is significantly less than unity (0.6) and hence the Cobb-Douglas production function is rejected. The growth rate of the estimated labour-augmenting technical progress has decreased in recent years, which is not consistent with the ‘new-economy’ hypothesis. Capital-augmenting technical trend has exploded during the same period, which provides a possible explanation for the rapid growth of the Solow residual. The main contributing factor behind the declining labour share is, however, the increasing mark-up.
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Bibliographic InfoPaper provided by Bank of Finland in its series Research Discussion Papers with number 10/2001.
Length: 46 pages
Date of creation: 01 Aug 2001
Date of revision:
production function; elasticity of technical substitution; input-augmenting technical progress; new economy;
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