translate English to French: If the "half life" of occupational skills is shrinking, as is generally thought, then it is essential that public policy provide incentives for retraining and skill upgrading among those who are active in the labour force.
Si les compétences professionnelles en demande changent de plus en plus rapidement, comme on le pense généralement, il faut absolument que les politiques publiques encouragent la main-d'oeuvre à se recycler et à se perfectionner.