Europeans are living longer, and fewer now remain in the labour force as they grow older. Many European countries have responded to the ensuing financial pressure by reforming their public pension systems and health care programmes. There is considerable uncertainty as to the effects of these...

In many countries. social security is a large fraction of the government budget. Why is it, given that at any moment in time the number of recipients of social security benefits is smaller than the number of contributors? Kore generally, what determines the size of social security? To answer...