Communist countries worked under thLarge or persistent inflation is almost always caused by a. excessive government spending. b. excessive growth in the quantity of money. c. higher-than-normal levels of productivity. d. foreign competition.e premise that a. allowing the market forces of supply and demand to operate with no government intervention would achieve the most efficient allocation of scarce resources. b. central planners were in the best position to determine the allocation of scarce resources in the economy. c. people, when left on their own without government intervention, will find the best use of available resources. d. households and firms, guided by an "invisible hand," could achieve the most efficient allocation of scarce resources