We start by arguing that to understand growth differences across countries and time, one needs to understand differences in public policies that affect the incentives for productive accumulation of capital, human capital, or technically useful knowledge. And to understand policy differences one...

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...