【单选题】Suppose the price of a Big Mac in New York is $3.00 and the price of a Big Mac in Paris is equivalent to $3.75 at the prevailing euro/dollar exchange rate. Using the concept of purchasing power parity...
【单选题】Alison is a traveling salesperson who drives many miles each day to visit her clients. She gets utility from the purchase of gasoline, but she doesn't care which brand of gasoline she consumes. Suppos...