Embodied Technological Change, Learning-by-Doing and the Productivity Slowdown
The productivity slowdown in the US economy since the first oil shock has recently been associated with a larger decline rate of the relative price of equipment investment and a smaller rate of disembodied technical change. We set up a growth model in which learning-by-doing is the engine of both embodied and disembodied technological progress. A shift in the relative efficiency of learning-by-doing from the consumption to the investment sector is shown to imply a technological reassignment consistent with the above-mentioned evidence. This result derives from the interaction between the obsolescence costs inherent in embodiment and the learning-by-doing engine. Copyright The editors of the "Scandinavian Journal of Economics", 2002 .
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