I am doing research on Globalization of economies. Economist argue over what is the best course to take. This is MHO the use of bank cards and not paying cash for things has caused this problem. If you make 50,000 (insert currency) and you are in debt because of bank cards and a mortgage of 500,000. Then you are living beyond your means. The bankers approved mortgages for people who did not have the means to pay for them. They in turn sold these derivatives to others. These had no real value, thus we had the real estate crash. This in turn caused the bank crash. This is simplistic but gets to the point of consumers and governments buying crap on credit with no means to clear the debt completely.