Population ageing, together with low economic growth, has put pressure on the financial equilibrium of many pension systems in Europe and other industrialized countries, forcing governments to increase the average retirement age. An extended working life – combined with the rapid technological progress taking place in many sectors – is likely to render the skills older workers attained at school obsolete. In this context, lifelong investment in training is a key strategy for increasing, or at least limiting the decline in, the productivity of older workers.