Li, Defu and Bental, Benjamin (2016): What determines the direction of technological progress?
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Abstract
What are the key determinants of the direction of technological progress is of central importance for many problems in macroeconomics. In the existing literature, the changing relative production factor prices as suggested by Hicks (1932) and the relative market sizes as indicated by Acemoglu (2002) are considered as the two major determinants. However, by allowing for adjustment costs in factor accumulation processes to expand Acemoglu’s (2003) model, this paper argues that, at least in the steady-state equilibrium, the direction of technological progress may be due to neither of them, but to the relative size of material factor price elasticities, and is biased towards the factor with the relatively smaller elasticity. In addition, contrary to the Uzawa(1961) steady-state theorem, this paper demonstrates that along a steady-state equilibrium path, technological progress can simultaneously include labor- and capital-augmenting elements alongside with unchanged factor income shares. Furthermore, this paper identifies more general conditions for the existence of a steady-state equilibrium of which Uzawa’s theorem obtains as a special case. Based on these results, the paper argues that technological progress may have not included labor-augmentation during the preindustrial era because labor supply was infinitely elastic with respect to wages, and no capital-augmentation after the industrial revolution because of the high capital supply elasticity with respect to the interest rate.
Item Type: | MPRA Paper |
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Original Title: | What determines the direction of technological progress? |
Language: | English |
Keywords: | steady-state, direction of technical change, Uzawa’s steady-state theorem, price elasiticities, factor income shares, adjustment cost |
Subjects: | E - Macroeconomics and Monetary Economics > E1 - General Aggregative Models > E13 - Neoclassical O - Economic Development, Innovation, Technological Change, and Growth > O1 - Economic Development > O11 - Macroeconomic Analyses of Economic Development O - Economic Development, Innovation, Technological Change, and Growth > O3 - Innovation ; Research and Development ; Technological Change ; Intellectual Property Rights > O33 - Technological Change: Choices and Consequences ; Diffusion Processes Q - Agricultural and Natural Resource Economics ; Environmental and Ecological Economics > Q0 - General > Q01 - Sustainable Development |
Item ID: | 71517 |
Depositing User: | Defu Li |
Date Deposited: | 24 May 2016 05:26 |
Last Modified: | 26 Sep 2019 18:43 |
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URI: | https://mpra.ub.uni-muenchen.de/id/eprint/71517 |
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