Which of the the following statements is true true ? ( )
A. “Two countries can achieve gains from trade even if one of the countries has an absolute advantage in the production of all goods.”
B. “Certain very talented people have a comparative advantage in everything they do.”
C. “If a certain trade is good for one person, it can’t be good for the other one.”
D. “If trade is good for a country, it must be good for everyone in the country.”
查看答案
An increase in ( ) will cause a movement along a given demand curve, which is called a change in ( ) .
A. supply, demand
B. supply, quantity demanded
C. demand, supply
D. demand, quantity supplied
Ketchup is a complement (as well as a condiment) for hot dogs. If the price of hot dogs rises,what happens in the market for ketchup? ( )
A. The supply curve shifts to the left.
B. The supply curve shifts to the right.
C. The demand curve shifts to the left.
D. The demand curve shifts to the right.
A linear, downward-sloping demand curve is ( )
A. inelastic.
B. unit elastic.
C. elastic.
D. inelastic at some points, and elastic at others.
The equilibrium price of coffee mugs rose sharply last month, but the equilibrium quantity was the same as ever. Three people tried to explain the situation. Which explanations could be right? ( ) Billy: Demand increased, but supply was totally inelastic. Marian: Supply increased, but so did demand. Valerie: Supply decreased, but demand was totally inelastic.
A. Billy and Valerie
B. Marian and Valerie
C. Billy and Valerie
D. Only Billy
微信支付 
支付宝支付