How do you solve this?

Suppose the pound devalues from $1.25 at the start of the year to $1.00 at the end of the year. Inflation during the year is 15% in England and 5% in the U.S. What is the real devaluation (-) or real revaluation (+) of the pound during the year?

a. - 12.38% b. - 20.71% c. + 2.39% d. + 1.46%

8 Comments
 

I'm not a finance expert, and I only trade on technicals, but I'm going with A. The inflation in the US is extraneous info and the 20% appreciation of USD is offset by the inlfation to make the true appreciation about 12%

 

= ( 1/1.25 (convert $1 into pound) * 1.15 (deposit in UK) / 1 (fx rate in 1 yr) ) / 1.05 (value of $1 deposited in US in 1 yr) - 1

= (0.92/1.05) - 1

I don't accept sacrifices and I don't make them. ... If ever the pleasure of one has to be bought by the pain of the other, there better be no trade at all. A trade by which one gains and the other loses is a fraud.
 

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