Résumé en anglais

We investigate the relationships between new technologies, innovative workplace practices and the age structure of the workforce in a sample of French firms. We find evidence that the wage-bill share of older workers is lower in innovative firms and that the opposite holds for younger workers. This age bias affects both men and women. It is also evidenced within occupational groups. More detailed analysis of employment inflows and outflows shows that new technologies essentially affect older workers through reduced hiring opportunities. In contrast, organisational innovations mainly affect their probability of exit, which decreases much less than for younger workers following reorganisation.