FIRM SIZE AND WAGES IN ITALY: EVIDENCE FROM EXOGENOUS JOB DISPLACEMENTS

We use longitudinal data based on administrative archives from 1985 to 2002 to estimate the relationship between wages and firm size for Italy. Controlling for individual fixed effects we find that larger firms pay significantly higher wages, although the individual unmeasured ability component accounts for about one half of the uncovered size-wage premium. To reduce potential self-selection problems arising from endogenous job changes, we focus on a sample of workers displaced by plant closings. Using this sample, we confirm that larger firms pay higher wages in part for unmeasured workers’ abilities and in part for true size effects.