4. Define each of the following theories accompanied by equations. Hypothetical examples are required. a. Interest rate parity. b. Expectations theory of forward rates. c. Purchasing power parity. d. International capital market equilibrium (relationship of real and nominal interest rates in different countries).

At a young age, ebony's coaches were confident she had the potential to be a world-class swimmer with a future coaching career. after four years on an athletic scholarship and olympic experience under her belt, she chose a different path. with her savings and personal connections, she rented a corner building in a bustling san francisco neighborhood and pursued her dream: a surf shop business. ebony's dream was rooted in which basic right of free-market capitalism?

U. s. internet advertising revenue grew at the rate of r(t) = 0.82t + 1.14 (0 ≤ t ≤ 4) billion dollars/year between 2002 (t = 0) and 2006 (t = 4). the advertising revenue in 2002 was $5.9 billion.† (a) find an expression f(t) giving the advertising revenue in year t.

Exercise 2-12 cost behavior; high-low method [lo2-3, lo2-4] speedy parcel service operates a fleet of delivery trucks in a large metropolitan area. a careful study by the company’s cost analyst has determined that if a truck is driven 120,000 miles during a year, the average operating cost is 11.6 cents per mile. if a truck is driven only 80,000 miles during a year, the average operating cost increases to 13.6 cents per mile. required: 1.& 2. using the high-low method, estimate the variable and fixed cost elements of the annual cost of truck operation. (round the "variable cost per mile" to 3 decimal places.)