# 經濟學上的題目

Sam’s demand curve for pizza

(A) has one point in common with her marginal benefit curve for pizza

(B ) is the same has her marginal benefit curve for pizza

(C ) lies above her marginal benefit curve for pizza

(D ) lies below her marginal benefit curve for pizza

Update:

Update 2:

which of the following would cause a rightward shift in the demand for gaoline by car drive?

1. a large increase in the prise of automobiles

2. a large reduction in the costs of producing gasoline

3. a large increase in the fare of public transportation

Rating

For each individual, the marginal benefit curve is the demand curve. For each firm, the marginal cost curve is the supply curve.

You should be able to find the answer.

The law of demand states that the higher the price of a good, the smaller is the quantity demanded, other things remaining the same. In other word, there is an inverse relationship between price and quantity demanded.

For your second question, when the price of the car increases, the demand of the car will decrease, hence the usage of the gasoline will decrease too.

If you still cannot understand, please let me know.

Source(s): I have a BS in Economics.
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