8) At a consumer’s optimal choice, the consumer chooses the combination of goods that
equates the marginal rate of substitution and the price ratio.
a.True
b.False
9) Suppose that when the average college student’s income is $10,000 per year, the
annual quantity demanded of Patty’s Pizza is 50 and the annual quantity demanded of
Sue’s Subs is 80. Suppose that when the price of Patty’s Pizza increases from $8 to $10
per pie, the quantity demanded of Sue’s Subs increases from 80 to 100. Suppose also
that when the average student’s income increases to $12,000 per year, the annual
quantity demanded of Patty’s Pizza increases from 50 to 60.
Using the midpoint method, the cross is
a.about 0.22, and the two goods are substitutes.
b.about -0.005, and the two goods are complements.
c.1, and the two goods are substitutes.
d.1, and the two goods are unitary elastic.
10) By definition, imports are
a.people who work in foreign countries.
b.goods in which a country has an absolute advantage.
c.limits placed on the quantity of goods leaving a country.
d.goods produced abroad and sold domestically.
11) Using the midpoint method, the for a good is computed to be approximately 2.
Which of the following events is consistent with a 0.1 percent increase in the price of
the good?
a.The quantity of the good demanded decreases from 250 to 150
b.The quantity of the good demanded decreases from 200 to 100
c.The quantity of the good demanded decreases by 0.05 percent.
d.The quantity of the good demanded decreases by 0.2 percent.