Joseph Gallo poured two glasses of wine from the same bottle but put a more expensive
price tag on one glass than on the other. He let people test both and asked which they
wanted; most wanted the more expensive glass, not knowing that both had come from
the same bottle. This kind of experiment tells us that:
A. preferences are given and are not shaped by society.
B. decision making is costless.
C. people probably want to drink wine for the sense of indulgence it gives them rather
than for the taste.
D. people never make rational choices.
Answer:
What is necessary for businesses to be profitable?
A. They must ignore the principle of consumer sovereignty.
B. They must ignore the invisible hand.
C. They must equalize their total revenues and total costs.
D. Entrepreneurship must be present.