Principles of Economics- Mankiw (5th) 121

Principles of Economics- Mankiw (5th) 121 - CHAPTER 6 S U P...

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CHAPTER 6 SUPPLY, DEMAND, AND GOVERNMENT POLICIES 125 When the government imposes a price floor on the ice-cream market, two out- comes are possible. If the government imposes a price floor of $2 per cone when the equilibrium price is $3, we obtain the outcome in panel (a) of Figure 6-4. In this case, because the equilibrium price is above the floor, the price floor is not binding. Market forces naturally move the economy to the equilibrium, and the price floor has no effect. Panel (b) of Figure 6-4 shows what happens when the government imposes a price floor of $4 per cone. In this case, because the equilibrium price of $3 is below the floor, the price floor is a binding constraint on the market. The forces of supply and demand tend to move the price toward the equilibrium price, but when the market price hits the floor, it can fall no further. The market price equals the price floor. At this floor, the quantity of ice cream supplied (120 cones) exceeds the quan- tity demanded (80 cones). Some people who want to sell ice cream at the going
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