The following sales revenue pattern for a British trading concern was cited earlier in the chapter:

2009

2010

2011

Sales revenue

£23,500

£28,650

£33,160

Required:

a: Perform a convenience translation into U.S. dollars for each year given the following year-end exchange rates:

2009

£1 = $2.10

2010

£1 = $2.20

2011

£1 = $1.60

b. Compare the year-to-year percentage changes in sales revenues in pounds and in U.S. dollars. Do the two time series move in parallel fashion? Why or why not?

c. Suggest a method for minimizing the effect of exchange rate changes on foreign currency trend data.