Reduced supply, with similar demand=higher price. My point is that my little cousin could achieve fairly reasonable economic growth if you made her treasury secretary in 1945. Keynesianism had nothing to do with it. Furthermore Keynesianism is suspect due to it being implemented in the 1930's and taking a massive war and the best economic conditions ever to get decent growth.
Housing makes up 15-20% GDP correct? It seems that computers, food, gas, and everything else make up a huge part of the decline in real incomes.
Yes because the Soviet command economy was SOOOO efficient and good at creating prosperity.
Getting back to your original point on even more massive spending being needed to remedy the current situation: US government spending was about 2.9 trillion in 2008 and around 3.8 trillion in 2012. I have two questions for you.
1) About what level of government spending would be appropriate in order to get the economy going again?
2) How would you avoid austerity in everything when the government cannot afford to service it's debt a few years down the line?