Well unfortunately exchange rates worldwide fluctuate, be it USD, the Euro, Pound, Rubles. What has happened in Canada that the CD has lost such value against the USD?? Justin Trudeau?????

I would assume that the USD reigns supreme in Cuba as well as other carib islands. The fact is there isn't much confidence in local economies in much of the world.

Read Power Game by the late, great Perry Henzell. It gives some fictitious insight into the mind set of Jamaican Government and Banking community, the dynamics behind at least in JA why businesses want US currency so much.