Measuring Productivity Growth: The world’s population today is about 20 times richer than it was back during the long Agrarian Age from 7000 BC to 1500, during which limited resources, slow technological advance, and Malthusian pressures kept the overwhelming proportion of human populations at near-“subsistence”–incomes of less than $1.50 per person per day. Today only … Continue reading Measuring Productivity Growth: No Longer So Live at Project Syndicate