The escalating battle of ideas between the Nobel Prize-winning economist and his illustrious peers

What has been getting the Nobel Prize-winning economist and New York Times columnist so riled up lately? In the last few weeks, what began as a semi-civil battle of ideas between “saltwater” Keynesians of Krugman’s persuasion and “freshwater” economists of the Chicago school has escalated into a two-way barrage of insults and name-calling.