The Importance of Market Forces in Economic Growth

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.