People cannot be prevented from using a good if the good is a A: private good or a public good. B: private good or a common resource. C: public good or a common resource. D: public good or a club good.

Knowledge that is patented is a A: public good, whereas knowledge that is not patented is a common resource. B: private good, whereas knowledge that is not patented is a club good. C: common resource, whereas knowledge that is not patented is a private good. D: club good, whereas knowledge that is not patented is a public good.

Whether a good is a luxury or necessity depends on the A: price of the good. B: preferences of the buyer. C: intrinsic properties of the good. D: scarcity of the good.

A Giffen good must be an inferior good. A: 对 B: 错

A normal good must be an ordinary good. A: 正确 B: 错误

An ordinary good must be a normal good. A: 正确 B: 错误

You must know food that looks good does ( ) taste good.

The relative price of a good is A: an opportunity cost. B: equal to the money price of a good. C: equal to the price of that good divided by the quantity demanded of the good. D: what you get paid for babysitting your cousin.

Shipped in apparent good order and condition means that the vessel looks very good.

John purchases two goods, x and y. Good x is an inferior good for some range of income.There must be another range of income for which good x is a normal good.