Assume that consumption spending is equal to $600, government spending is $100 billion, and GDP is $800 billion. If net exports are equal to zero, investment spending must be

A monopolist's supply curve is the portion of its marginal cost curve above average variable cost

a. True b. False

If the price of potato chips increases, the demand for potato-chip dip will

a. remain unchanged but the quantity demanded will increase b. increase, because the goods are substitutes c. decrease, because the goods are substitutes d. decrease, because the goods are complements e. increase, because the goods are complements