Capital market expecttaions

Hi,

I am on eoc for Cap market exp eoc # 19. I just do not understand it. q is copied:

[question removed by moderator]

A. current exchange rate if PPP prevails must reflect an inflation differential

Switz

CPI = (150/100) -1 = 1,5 -1 = 0,5

Fap

CPI = (140/100) = 1,4 - 1 = 0,4

Differential = 0,5 - 0,4 = 0,1

Fip/Chf 10 Y Ago = 3 Fips per 1 CHF

According to PPP should be = Spot (CPI A / CPI B) = 3 (1,4/1,5) = 2,8 Fip/CHF

B) Since current exch. rate is 2 Fip/Chf, Fips are overvalued.