单项选择题
A. P = MC and the price of the product will be determined by the MC curve. B. MR = MC and the price of the product will be determined by the demand curve. C. P = MR and the price of the product will be determined by the ATC curve.
A. Increase real GDP, but not prices in the short run, while in the long run, prices will increase, nominal GDP will increase as a result and real GDP will remain at the new (short-run) higher level. B. Increase nominal GDP, real GDP, and prices in the short run, while in the long run, prices will increase further but real GDP will decrease to its original level. C. Increase nominal GDP, real GDP, and prices in the short run and in the long run.
A. High barriers to entry. B. The availability of many complementary goods. C. The availability of many close substitutes.