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Productive government investment and the labor share

Pedro R.D. Bom and Iñaki Erauskin

MPRA Paper from University Library of Munich, Germany

Abstract: A recent body of literature has sought to determine the causes of the global decline of the labor share. We study the role played by government investment—which has also fallen in many advanced economies over the past few decades—in the labor share decline. We first establish a theoretical link between government investment and the labor share using a general equilibrium macroeconomic model, where government capital enters the production function in a factor-augmenting fashion. Our analytic results show that a permanent cut to government investment causes a steady-state decline in the labor share if the elasticity of substitution between private capital and labor is less than one and public capital augments private capital. We then study the empirical relationship between these variables using two panel datasets covering 79 countries, both developing and developed, over the period 1970-2017. Using a system GMM estimator, we find a positive and statistically significant association between government investment and the labor share in advanced economies; for developing countries, however, we find no effect.

Keywords: productive government investment; public investment; public capital; public infrastructure; factor income shares; labor share (search for similar items in EconPapers)
JEL-codes: E25 E60 H54 (search for similar items in EconPapers)
Date: 2021-06-21
New Economics Papers: this item is included in nep-dge and nep-mac
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