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Title:The wage-productivity gap revisited: Is the labour share neutral to employment? PDF Logo
Authors:Karanassou, Marika
Sala, Héctor
Issue Date:2010
Series/Report no.:Discussion paper series // Forschungsinstitut zur Zukunft der Arbeit 5092
Abstract:This paper challenges the prevailing view of the neutrality of the labour income share to labour demand, and investigates its impact on the evolution of employment. Whilst maintaining the assumption of a unitary long-run elasticity of wages with respect to productivity, we demonstrate that productivity growth affects the labour share in the long run due to frictional growth (that is, the interplay of wage dynamics and productivity growth). In the light of this result, we consider a stylised labour demand equation and show that the labour share is a driving force of employment. We substantiate our analytical exposition by providing empirical models of wage setting and employment equations for France, Germany, Italy, Japan, Spain, the UK, and the US over the 1960-2008 period. Our findings show that the time-varying labour share of these countries has significantly influenced their employment trajectories across decades. This indicates that the evolution of the labour income share (or, equivalently, the wage-productivity gap) deserves the attention of policy makers.
Subjects:wages
productivity
labour income share
employment
JEL:E24
E25
O47
Persistent Identifier of the first edition:urn:nbn:de:101:1-201008116392
Document Type:Working Paper
Appears in Collections:IZA Discussion Papers, Forschungsinstitut zur Zukunft der Arbeit (IZA)

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