It's not just a possible explanation, it's the most obvious one. It's a well understood phenomenon that results in exactly what he's discussing here. > some nu

It's not just a possible explanation, it's the most obvious one. It's a well understood phenomenon that results in exactly what he's discussing here. > some numbers suggest poor people capture more of the gains from economic growth than is widely thought. Some individual poor persons will, yes. "The poor", as a class, will not.