A. always equal to one.
B. half as steep as the demand curve
C. the same as the slope of the demand curve
D. twice as steep as the demand curve

A. the difference between total revenue and total costs.
B. anything greater than the normal opportunity cost of investing
C. the opportunity costs of all inputs
D. a rate of profit that is just sufficient to keep owners and investors satisfied

A. Is the rate of return on investments over the interest rate on risk-free government bonds.
B. is the rate that is just sufficient to keep owners or investors satisfied.
C. is the difference between total revenue and total costs
D. is zero in a perfectly competitive industry.

A. immediate run
B. intermediate run
C. long run
D. short run

A. there are many EU and government health controls on cosmetic products
B. there are a very large number of firms in the industry
C. firms spend a large amount of money on advertising
D. profit margins are very high for both producers and retailers

A. no longer influences the amount demand of the firm’s product
B. becomes a decision variable for the firm
C. is guaranteed to be above a firm’s average cost.
D. is determined by the actions of other firms in the industry

A. a firm’s ability to monopolies a market completely.
B. a firm’s ability to raise price without losing all demand for its product
C. a firm’s ability to sell any amount of output it desires at the market-determined price.
D. a firm’s ability to charge any price it likes

A. fixed costs exceed revenues.
B. it is suffering a loss.
C. variable costs exceed revenues
D. total costs exceed revenues

A. £35
B. £15
C. £30
D. £60

A. DTVC/Dq
B. q/TVC
C. Dq/DTVC
D. TVC/q