Paul Krugman must be pulling his hair out about now. He recently complained that it was almost impossible to figure out what MMTers were advocating, and then tried to pin them down with some very specific questions: Are MMTers claiming, as Kelton seems to, that there is only one deficit level consistent with full employment, that there is no ability to substitute monetary for fiscal policy? Are they claiming that expansionary fiscal policy actually reduces interest rates? Yes or no answers, please, with explanations of how you got these answers and why the straightforward framework I laid...