Decomposition of Labor Productivity Growth: A Multilateral Production Frontier Approach
This paper develops a parametric decomposition framework of labor productivity growth relaxing the assumption of labor-specific efficiency. The decomposition analysis is applied to a sample of 52 developed and developing countries from 1965-90. A generalized Cobb-Douglas functional specification is used taking into account differences in technological structures across group of countries to approximate aggregate production technology using Jorgenson and Nishimizu (1978) bilateral model of production. Measurement of labor efficiency is based on KoppÃƒÂ¢Ã¯Â¿Â½Ã¯Â¿Â½s (1981) orthogonal non-radial index of factor-specific efficiency modified in a parametric frontier framework. The empirical results indicate that the weighted average annual rate of labor productivity growth was 1.43 per cent over the period analyzed. Technical change was found to be the driving force of labor productivity, while improvements in labor efficiency and human capital account approximately for the 22 per cent of that productivity growth.
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