Panama uses the US Dollar as their currency. Panama also has the canal. I think a lot of things could leave panama going north but not sure how much is coming into Panama from Central America. Panama is pretty big on people retiring there giving them tax breaks on property taxes, easier and cheaper to import there, etc.
actually, the official currency of Panama is the balboa, but it is pegged at a rate of 1:1 with the US dollaar, which is also another official currency.