The “Big Mac Theory of Exchange Rates” tests the accuracy of the purchasing power
parity theory. In July 2013, the Economist reported that the average price of a Big Mac
in the U.S. was $4.56. In Sweden, the average price of a Big Mac at that time was 41.6
kronor. What is the “implied exchange rate” between Swedish kronor and U.S. dollars?
A) 0.11 kronor per dollar
B) 1.90 kronor per dollar
C) 9.12 kronor per dollar
D) 46.2 kronor per dollar
The law of diminishing marginal returns states
A) that at some point, adding more of a fixed input to a given amount of variable inputs
will cause the marginal product of the variable input to decline.
B) that at some point, adding more of a variable input to a given amount of a fixed input
will cause the marginal product of the variable input to decline.
C) that in the presence of a fixed factor, at some point average product of labor starts to
fall as more and more variable inputs are added.
D) average total costs of production initially fall and after some point starts to rise at a
decreasing rate as output increases.