17) A U.S.-based currency dealer has good credit and can borrow $1,000,000 for one year. The
one-year interest rate in the U.S. is i$ = 2% and in the euro zone the one-year interest rate is i€ =
6%. The spot exchange rate is $1.25 = €1.00 and the one-year forward exchange rate is $1.20 =
€1.00. Show how to realize a certain dollar profit via covered interest arbitrage.
A) Borrow $1,000,000 at 2%. Trade $1,000,000 for €800,000; invest at i€ = 6%; translate proceeds
back at forward rate of $1.20 = €1.00, gross proceeds = $1,017,600.
B) Borrow €800,000 at i€ = 6%; translate to dollars at the spot, invest in the U.S. at i$ = 2% for one
year; translate €848,000 back into euro at the forward rate of $1.20 = €1.00. Net profit is $2,400.
C) Borrow €800,000 at i€ = 6%; translate to dollars at the spot, invest in the U.S. at i$ = 2% for one
year; translate €850,000 back into euro at the forward rate of $1.20 = €1.00. Net profit is €2,000.
D) Borrow €800,000 at i€ = 6%; translate to dollars at the spot, invest in the U.S. at i$ = 2% for one
year; translate €850,000 back into euro at the forward rate of $1.20 = €1.00. Net profit is €2,000.
Alternatively, one could borrow €800,000 at i€ = 6%; translate to dollars at the spot, invest in the
U.S. at i$ = 2% for one year; translate €848,000 back into euro at the forward rate of $1.20 = €1.00.
Net profit is $2,400.
18) An Italian currency dealer has good credit and can borrow €800,000 for one year. The one-year
interest rate in the U.S. is i$ = 2% and in the euro zone the one-year interest rate is i€ = 6%. The
spot exchange rate is $1.25 = €1.00 and the one–year forward exchange rate is $1.20 = €1.00. Show
how to realize a certain euro-denominated profit via covered interest arbitrage.
A) Borrow $1,000,000 at 2%. Trade $1,000,000 for €800,000; invest at i€ = 6%; translate proceeds
back at forward rate of $1.20 = €1.00, gross proceeds = $1,017,600.
B) Borrow €800,000 at i€ = 6%; translate to dollars at the spot, invest in the U.S. at i$ = 2% for one
year; translate €848,000 back into euro at the forward rate of $1.20 = €1.00. Net profit is $2,400.
C) Borrow €800,000 at i€ = 6%; translate to dollars at the spot, invest in the U.S. at i$ = 2% for one
year; translate €850,000 back into euro at the forward rate of $1.20 = €1.00. Net profit is €2,000.
D) Borrow €800,000 at i€ = 6%; translate to dollars at the spot, invest in the U.S. at i$ = 2% for one
year; translate €850,000 back into euro at the forward rate of $1.20 = €1.00. Net profit is €2,000.
Alternatively, one could borrow €800,000 at i€ = 6%; translate to dollars at the spot, invest in the
U.S. at i$ = 2% for one year; translate €848,000 back into euro at the forward rate of $1.20 = €1.00.
Net profit is $2,400.