Barriers of the World

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Across
  1. 2. prices of oil distributed around the world
  2. 4. Bringing goods/ services into a country from a sale
  3. 6. (Organization of Petroleum Exporting Countries)
  4. 7. Any restriction on trade
  5. 9. A limit on a particular item
Down
  1. 1. The branch of knowledge concerned with production and consumption
  2. 3. Sent to another country for sale
  3. 5. Tax on imported/exported goods
  4. 8. An official ban on trade with another country