Other things remaining the same, if the U.S. interest rate differential increases, the demand curve for U.S. dollars shifts ________ and the supply curve of U.S. dollars shifts ________

Show Stoppers is a monopoly provider of ticket services for the concerts and sporting events and their current service charge is $10.00 . In order to attract one more customer, they have to lower their service charge to $9.50 . Show Stoppers' marginal revenue of this additional customer is: a. $9.50

b. greater than $9.50. c. less than $9.50. d. between $10.00 and $9.50.

Suppose there are four industries. Labor costs are 70 percent of total costs in industry A, 80 percent in B, 45 percent in C, and 10 percent in D. In which of these industries will a 10 percent increase in the price of labor reduce quantity demanded of

labor by the largest proportion? A) A B) B C) C D) D