The Italian Jobs Act introduced a subsidy for new hirings as well as a new open ended labor contract based on graded security, with severance payments increasing with tenure, while phasing out the compulsory reinstatement of workers in the case of unfair dismissals applied until March 2015. Simple models of job creation and destruction predict that hiring subsidies and lower firing costs unambiguously increase hirings. Moreover, lower firing costs associated with graded security should also increase layoffs. These effects need not to be uniform across the size distribution of firms, especially when firms of different size are treated differently by the policy changes as in the case of the Jobs Act. On the one hand, the hiring subsidy was pr...