types of workers : skilled and unskilled. This enables us to distinguish two effects of social contributions on labor : a … substitution effect due to the change in relative cost of workers, and the effect on the wedge of the wage bargaining process. We … contributions rate for low-wage workers, and the real cost of capital. We finally include the wage-setting and price …

This paper studies changes in wage differentials accross education groups for full-time male workers in the French … private sector, from 1976 to 2004. We apply quantile regressions to Mincer-type equations to disentangle between- and within-education … 1992 and slightly decreased from 1995 to 2004. (2) Within-education group wage inequalities increase with education and are …

relative productivity of groups of workers is estimated through the relationship between a firms productivity and the age … previous estimations of a lower productivity for workers after 50 may reveal a endogeneity bias rather than a true decrease of … productivity for older workers. However, this observation only applies to workers who remain in employment. We do not control for …

worker increases a firms labor productivity by 0.4 %. Moreover, firms benefit from providing training to their workers, since …

education level protects against poverty entry, but does not increase the chances of living poverty. …

differences between them. Moreover, hiring problems are more important when 35-hour firms try to hire skilled workers. However …