13) When Mario’s income decreases, he buys more pasta. For Mario, pasta is a normal
good.
a.True
b.False
14) Consider the indifference curve map and budget constraint for two goods, beef and
potatoes. Suppose the good measured on the horizontal axis, potatoes, is a Giffen good.
Beef is measured on the vertical axis and is a normal good. When the price of potatoes
increases, the substitution effect causes
a.an increase in the consumption of potatoes, and the income effect causes a decrease in
the consumption of potatoes. The substitution effect is less than the income effect.
b.a decrease in the consumption of potatoes, and the income effect causes an increase in
the consumption of potatoes. The substitution effect is greater than the income effect.
c.an increase in the consumption of potatoes, and the income effect causes a decrease in
the consumption of potatoes. The substitution effect is greater than the income effect.
d.a decrease in the consumption of potatoes, and the income effect causes an increase in
the consumption of potatoes. The substitution effect is less than the income effect.
15)
Which of the following would cause the supply curve to shift from Supply A to Supply
C in the market for sail boats?
a.an increase in the price of sailboats
b.a decrease in the number of firms selling sailboats
c.a decrease in the price of fiberglass and sail cloth
d.a decrease in the price of America’s Cup sailing tshirts