Refer to the above graph. There are economies of scale:
A.From Q1 to Q2
B.From Q2 to Q3
C.From Q3 to Q4
D.After Q4
10) If energy use per capita in developed countries had leveled off while GDP per
capita had risen, then it must mean that:
A.Energy efficiency had risen
B.Energy efficiency had fallen
C.The energy-use-to-GDP ratio had risen
D.The GDP-to-energy-use ratio had fallen
11) When a firm doubles its inputs and finds that its output has more than doubled, this
is known as:
A.Economies of scale
B.Constant returns to scale
C.Diseconomies of scale
D.A violation of the law of diminishing returns
12) The marginal revenue curve for a monopolist:
A.is a straight, upsloping curve.
B.rises at first, reaches a maximum, and then declines.
C.becomes negative when output increases beyond some particular level.
D.is a straight line, parallel to the horizontal axis.
13) Government can raise economic efficiency through all of the following policies,
except:
A.Outlawing various forms of commercial deception
B.Imposing pollution taxes on polluting firms
C.Using tax money to subsidize goods with external benefits
D.Fixing the prices of various resources and products