Demography as a forecasting tool

The European population is rapidly ageing. This implies changing economic and social relations between the generations. In turn this precipitates economic change. In particular the welfare bill in the future needs to be paid for more dependants by a smaller working population. This fundamental shift also changes the conditions for productivity growth, trade and even monetary policy. Using demographic projections to forecast these changes and integrate them into futures scenarios contributes to realism in the futures envisioned. Demographic processes can be influenced by policy, but the feedback is slow. This ensures the usefulness of demographic forecasting but it also implies that policy decisions need to be taken well in advance of the problems that ageing will cause. At horizons beyond 10–20 years there are ample opportunity to adapt the society to avoid unacceptable scenarios. Before that the scope for action is much less and much more constrained. The inertia of the demographic structure is such that it is hard and probably costly to turn unwanted trends caused by unbalanced age structures. For example, a likely consequence of the developing scarcity of labour in Europe is that the demand for education goes down in spite of the desirability for society to expand higher education.