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Micro Data and Macro Technology
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DOI：10.3982/ECTA12807.png)
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We develop a framework to estimate the aggregate capital-labor elasticity of substitution by aggregating the actions of individual plants. The aggregate elasticity reflects substitution within plants and reallocation across plants; the extent of heterogeneity in capital intensities determines their relative importance. We use micro data on the cross-section of plants to build up to the aggregate elasticity at a point in time. Interpreting our econometric estimates through the lens of several different models, we find that the aggregate elasticity for the U.S. manufacturing sector is in the range of 0.5-0.7, and has declined slightly since 1970. We use our estimates to measure the bias of technical change and assess the decline in labor's share of income in the U.S. manufacturing sector. Mechanisms that rely on changes in the relative supply of factors, such as an acceleration of capital accumulation, cannot account for the decline.
Keyword:
Elasticity of substitution
aggregation
labor share
bias of technical change
期刊
IF:
7.1
论文数:
3.0K
被引数:
4.3W
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引用论文
POTENTIATION OF 5-HT NEUROTRANSMISSION BY SHORT-TERM LITHIUM: IN VIVO ELECTROPHYSIOLOGICAL STUDIES.
PREAI
分享收藏分享收藏分享收藏Identifying the Elasticity of Substitution with Biased Technical Change.png)
AMERICAN ECONOMIC REVIEW
OAAI
AMERICAN ECONOMIC REVIEWIF11.6
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