7. When Emily has an income of $1,000, she consumes 30 units of good A and 50 units of good B. After Emily's income increases to $1,500, she consumes 60 units of good A and 45 units of good B. Which of the following statements is correct?
a. Both goods A and B are normal goods
b. Both goods A and B are inferior goods
c. Good A is a normal good, good B is an inferior good
d. Good A is an inferior good, good B is a normal good
Option C
If Coke and Pepsi are substitutes, which of the following will NOT cause an increase in the demand of Pepsi?
a. A health study comes out with a correlation between Coke consumption and shorter life expectancies.
b. Coke factories develop a new technology that allows them to more easily produce
Coke.
c. Public opinion of the taste of Pepsi with respect to Coke increases, leading to greater Pepsi consumption.
d. The price of one of the main ingredients in Coke’s secret recipe increases.
Option B
Which of the following could lead to an increase in the equilibrium price for a normal good?
I. An increase in the price of a substitute good
II. A government-imposed price ceiling
III. A decrease in consumer income
IV. An improvement in production technology
a. I
b. II, IV
c. III
d. I, III, IV
Option A
Economic growth can be represented by
a. an inward shift of the production possibilities curve.
b. an outward shift of the production possibilities curve.
c. a movement downward along the production possibilities curve.
d. a movement from a point on the curve to a point inside the curve.
Option B
Which of the following is NOT counted in nominal GDP?
a. Housing rent
b. Input goods sales
c. Used car rentals
d. Used car sales
Option D