Why Hours Worked Decline Less after Technological Shocks?
Olivier Cardi and
Romain Restout ()
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Romain Restout: UL - Université de Lorraine, BETA - Bureau d'Économie Théorique et Appliquée - AgroParisTech - UNISTRA - Université de Strasbourg - Université de Haute-Alsace (UHA) - Université de Haute-Alsace (UHA) Mulhouse - Colmar - UL - Université de Lorraine - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement
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Abstract:
The contractionary effect of technology shocks on hours gradually vanishes over time in OECD countries. To rationalize the decline in hours and its disappearance, we use a VAR-based decomposition of technology shocks into symmetric and asymmetric technology improvements. While hours decline dramatically when technology improves at the same rate across sectors, hours significantly increase when technology improvements occur at different rates. Because they are primarily driven by symmetric technology improvements, permanent technology shocks drive down total hours. Such a decline progressively vanishes due to the growing importance of asymmetric technology shocks. To reach these two conclusions, we simulate a two-sector model which can reproduce the contractionary effect on hours once the economy is internationally open and we allow for production factors' mobility costs, factor-biased technological change, and home bias. To account for the vanishing decline in hours, we have to let the share of asymmetric technology shocks increase over time.
Keywords: Hours worked; Symmetric and asymmetric technology shocks; Tradables and non-tradables; International openness; Factor-augmenting efficiency; Labor reallocation. (search for similar items in EconPapers)
Date: 2025-04-28
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Persistent link: https://EconPapers.repec.org/RePEc:hal:wpaper:hal-05048707
DOI: 10.1016/j.jinteco.2025.104095
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