Using a demand-and-supply graph, show and describe the effect on equilibrium market price and quantity for health care of the following:
1. Increased graduations of new doctors on the market for physicians.
2. A price ceiling placed on physicians fees in the market for physician services.
3. The virtual elimination of smoking in the population on the market for hospital services.
4. A technological change that reduces the cost of producing X-rays on the market for physician clinic services.