What do all economists have in common?
A. They believe institutions are the primary forces in the market.
B. They believe that the invisible hand results in the most efficient outcome.
C. They use highly mathematical models to explain real-world events.
D. They believe that models must capture the importance of incentives.
Answer:
In a perfectly competitive market, an increase in market demand in a long-run
constant-cost industry causes:
A. an increase in price, quantity, and profit in the short run.
B. an increase in price, quantity, and profit in the long run.
C. a decrease in price, a decrease in quantity, and a decrease in profit in the short run.
D. a decrease in price, a decrease in quantity, and a decrease in profit in the long run.
Answer: