Consider the market for smart phones. Which of the following shifts the demand curve rightward?
A) a decrease in the price of smart phones
B) an increase in the price of smart phones
C) an increase in the price of land-line phone service, a substitute for smart phones
D) an increase in the supply of smart phones
E) a decrease in the number of smart phone buyers
C
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The investment function intersects the saving schedule at an interest rate of 8 percent and a level of investment of $1.2 trillion a year. If the consumption curve intersects the 45-degree reference line at $3 trillion, then
A) the C + I curve will intersect the 45-degree reference line at $1.2 trillion. B) the C + I curve will intersect the 45-degree line at $1.8 trillion. C) the equilibrium level of real GDP is $1.8 trillion. D) the equilibrium level of real GDP is $4.2 trillion.
In the short run, a firm's output level is 5 units. Its average cost is $40 and its fixed cost is $50. What is this firm's variable cost of producing 5 units?
A) VC = $50 B) VC = $100 C) VC = $150 D) VC = $175