Supply, demand and Government policies In a free, unregulated market system, market forces establish equilibrium prices and exchange quantities While equilibrium conditions may be efficient, it may be true that not everyone is satisfied One of the roles of economists is to use their theories to assist in the development of policiesSupply, Demand and Government Policies • In a free, unregulated market system, market forces establish equilibrium prices and exchange quantities. • While equilibrium conditions may be efficient, it may be true that not everyone is satisfied. • One of the roles of economists is to use their theories to assist in the development of policies