In DR., you have to consider few more factors before you make your final decisions of the deposit in the bank:
1. the currency exchange rate: say, if you get 14% interest rate from bank., and you lose 15% of the exchange rate on the foreign currency after one year., end up you lose your money at the face value of the foreign currency. YES, you do make some interests, but in case if you want to change the moeny back to your own country's currency, you will get back far less.
2. The inflation rate: DR is the country that you have no way to know the inflation rate rocketing high at when it will happen? How much it will go?
3. Interest is unearned income in the US., you also need to think about how the Government change the policies, if any..., such as withholding, personal income taxes...etc.
4. accessibility: I used to deposit US$ check in the bank, it took me 45 days to get cleared., and I want to withdrawl my US$, I have to preadvise the bank, takes 2-3 days to get MY OWN money. (You can double check with banks on this issue, they may change now)
So., do not just calculate what you could make on the interest monthly., also take into consideration other factors......, then make your final decision.