Can Capital Deepening Explain the Global Decline in Labor's Share?

Andy Glover and Jacob Short

Review of Economic Dynamics, 2020, vol. 35, 35-53

Abstract: We estimate an aggregate elasticity of substitution between capital and labor near or below one, which implies that capital deepening cannot explain the global decline in labor's share. Our methodology derives from transition paths in the neo-classical growth model. The elasticity of substitution is identified from the cross-country correlation between trends in the labor share and a theoretically derived proxy for the rental rate of capital. Trends in labor's share and the rental rate are weakly correlated across countries, and inversely related in most samples. Previous cross-country estimates of this elasticity were substantially greater than one, which we show was largely due to omitted variable bias: earlier studies used investment prices alone to proxy for the rental rate, whereas the growth model relates rental rates to investment prices and consumption growth. (Copyright: Elsevier)

Keywords: Labor-share; Capital-labor substitutability (search for similar items in EconPapers)
JEL-codes: E23 E24 E25 (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (22)

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DOI: 10.1016/j.red.2019.04.007

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