There is no completely closed economy. But Brazil is an example.
Explanation:
Countries or Economies that have no economic or trading activities with other countries or economies are termed as Closed Economies.
A closed economy would be importing and exporting nothing into their country. They would be self-sufficient and everything will be provided for their needs from within the country.
No country in the world is completely closed to any other economy.
Presently, Brazil imports the least from other countries as compared to their GDP and so it can be considered as a closed economy.
