I think we have a sense that overall things that look like pro-market policies tend to foster economic growth, but it's hard to be exactly precise. I think investment in a sort of standard sense actually looks like a positive. High fertility rates, which underlie high population growth, are somewhat of a negative, but not maybe the most important force. If you look at something like government consumption overall, it looks like it's a negative.
Russ Roberts interviews Robert Barro, Harvard University Professor and Hoover Institution Senior Fellow, on the economics of growth, what the developed world can do to help poor people around the world, and the role of US assets and the dollar in world finance.