Answer: cross rates, arbitrage, disappear quickly
Step-by-step explanation:
When cross rates differ from one global financial center to another, arbitrage profit opportunities are said to exist but disappear quickly.
Cross rates simply means the foreign exchanges rates for currencies of countries. It should be noted that when the cross rates of countries differs, it brings about arbitrage profit which simply means the profit one makes due to the different rates utilized on different markets. It should be noted that when though this profits occur, they disappear quickly.