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Title:The public pay gap in Britain: small differences that (don't?) matter PDF Logo
Authors:Postel-Vinay, Fabien
Turon, Hélène
Issue Date:2005
Series/Report no.:IZA Discussion Papers 1637
Abstract:The existing literature on inequality between private and public sectors focuses on cross-section differences in earnings levels. A more general way of looking at inequality between sectors is to recognize that forward-looking agents will care about income and job mobility too. We show that these are substantially different between the two sectors. Using data from the BHPS, we estimate a model of income and employment dynamics over seven years. We allow for unobserved heterogeneity in the propensity to be unemployed or employed in either job sector and in terms of the income process. We then combine the results into lifetime values of jobs in either sector and carry out a cross-section comparative analysis of these values. We have four main findings. First focusing on cross-sector differences in terms of the income process only, we detect a positive average public premium both in income flows and in the present discounted sum of future income flows. Second, most of the observed relative income compression in the public sector is due to a lower variance of the transitory component of income. Third, when taking job mobility into account, the lifetime public premium is essentially zero for workers that we categorize as high-employability individuals, suggesting that the UK labor market is sufficiently mobile to ensure a rapid allocation of workers into their natural sector. Fourth, we find some evidence of job queuing for public sector jobs among low-employability workers.
Subjects:income dynamics
job mobility
public-private inequality
selection effects
JEL:J45
J31
J62
Document Type:Working Paper
Appears in Collections:IZA Discussion Papers, Forschungsinstitut zur Zukunft der Arbeit (IZA)

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