Suppose Russia’s inflation rate is 100 percent over one year but the inflation rate in Switzerland is only 5 percent. According to relative PPP, what should happen over the year to Swiss franc’s exchange rate against the Russian ruble?
Answer:
Relative PPP predicts that inflation differentials are matched by percentage change in the exchange rate. Under relative PPP, the franc/ruble exchange rate would fall by 95%. That is, the franc is expected to appreciate against the ruble by 95%
Relative PPP predicts that inflation differentials are matched by changes in the exchange rate.
Given, Inflation rate in country
S = 100%
Inflation rate in country R = 5%
Calculate the inflation differential as follows:
Inflation differentials =100%-5%
= 95%
Thus, the inflation differential is 95% = change in ruble/franc exchange rate
Under relative PPP, the ruble is expected to depreciate by 95%.
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