Foreign Exchange. You just came back from Canada, where the Canadian dollar was worth $.70. You still have C$200 from your trip and could exchange them for dollars at the airport, but the airport foreign exchange desk will only buy them for $.60. Next week, you will be going to Mexico and will need pesos. The airport foreign exchange desk will sell you pesos for $.10 per peso. You met a tourist at the airport who is from Mexico and is on his way to Canada. He is willing to buy your C$200 for 1,300 pesos. Should you accept the offer or cash the Canadian dollars in at the airport? Explain. ANSWER: Exchange with the tourist. If you exchange the C$ for pesos at the foreign exchange desk, the cross-rate is $.60/$10 = 6. Thus, the C$200 would be exchanged for 1,200 pesos (computed as 200 6). If you exchange Canadian dollars for pesos with the tourist, you will receive 1,300 pesos