Economics crossword puzzle

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Across
  1. 5. the theory or practice of shielding a country's domestic industries from foreign competition by taxing imports.
  2. 7. a tax or duty to be paid on a particular class of imports or exports.
  3. 8. the difference in value between a country's imports and exports.
  4. 9. bring (goods or services) into a country from abroad for sale.
  5. 10. the ability of an individual or group to carry out a particular economic activity more efficiently than another individual or group.
  6. 11. a limited or fixed number or amount of people or things, in particular.
Down
  1. 1. the amount by which the cost of a country's imports exceeds the value of its exports.
  2. 2. North American Free Trade Agreement
  3. 3. send (goods or services) to another country for sale.
  4. 4. the ability of an individual or group to carry out a particular economic activity (such as making a specific product) more efficiently than another activity.
  5. 6. the amount by which the value of a country's exports exceeds the cost of its imports