The UK has one of the six accepted world's "hard" currencies. Other countries with a similar GDP to Texas cannot issue a hard currency. International trade will

The UK has one of the six accepted world's "hard" currencies. Other countries with a similar GDP to Texas cannot issue a hard currency. International trade will still happen in dollars, although I suppose they could print a bill for internal use. Russia, which has a similar GDP, didn't have any appreciable external debts denoted in rubles. They were denoted in dollars, pounds sterling or other hard currencies.