well, after the war the allied governments controlled area's of germany for a while. the United States, Britain, France, and the Soviet Union. price controls changed a bit, but were still in place. the price controls mad food shortage so bad people started to barter food from farmers or grow there own.
they started a new german government with non-nazis, but it still stayed under allied gov't control.
afterwords people found there way back to money, and started working again.