10. True/False: Shirley knows her marginal rate of su…
Question Shirley knows her marginal rate of substitution of mangos in place of bananas is
equal to three. The price of bananas is $0.50 and the price of mangos is $1.00.
Shirley should buy more mangos.
11. True/False: At the video store, Lucian narrows hi...
Question At the video store, Lucian narrows his selection to either a $2 videocassette of The
Evil Dead or a $4 DVD of Finding Nemo. Lucian finally flips a coin to decide which
movie to rent. This must mean that Lucian‘s marginal rate of substitution of The Evil
Dead for Finding Nemo is 0.5.
False
12. True/False: Henry and Anne have identical incomes…
Question Henry and Anne have identical incomes. Both buy only sardines and ice cream.
Since they face the same prices for the two goods, their optimal consumption
bundles must be identical.
13. True/False: Mr. Coiner is always willing to excha…
Question Mr. Coiner is always willing to exchange two nickels for a dime, no matter how
many nickels and dimes he has. This implies that nickels and dimes are ordinary
goods for Mr. Coiner.
14. True/False: Pooh spends all his income on honey a...
Question Pooh spends all his income on honey and maple syrup. Because he views honey
and maple syrup as perfect substitutes, he is willing to substitute honey for maple
syrup at the constant rate of 1 teaspoon of honey to 2 teaspoons of maple syrup. If
the relative price of honey in terms of maple syrup is 2.2, Pooh’s optimal
consumption bundle will consist entirely of maple syrup.
15. True/False: Ms. Stardoe gets utility from coffee …
Question Ms. Stardoe gets utility from coffee and cream, but only if they are consumed in the
precise ratio of 8 ounces of coffee to 2 ounces of cream. This implies that coffee and
cream are ordinary goods for Ms. Stardoe.
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