Keynes applied the economic theories of his country to America. He knew how the economy worked in his homeland but not here. Different animal. Once he crossed the pond he went from smart to not so smart. In one of his writings he said his theory works best in a certain form of government. I can't remember the word he used. Something close to socialist. None the less, a brilliant man who taught people a lot about economics and corrections.Why don't you try actually learning Keynes positions instead of just spouting random shit? To say Keynesianism does not take into account a global economy is laughable you tool. Keynes himself never argued perpetual debt was good. It seems you don't know what Keynesianism is IMO.
I think the "global economy" stuff is a buzzword anyway. Hasn't there always been a global economy? Technology has allowed things to move quicker and less costly.
Inflation a better term than perpetual debt? For some reason quite a few economists think very small inflation is the thing to shoot for. Of course those same ones will tell you about the bad economy in the latter part of the 1800's too because of deflation. But they ignore the fact that prices went down faster than wages. Isn't it always about the purchasing price of the dollar anyway?