The Economic Freedom Index scores countries on the economic freedom in a number of areas encompassing legal system & property rights, sound money, freedom to trade internationally and regulation.
The index uses a 0-10 scoring scale in each category with higher values representing greater economic freedom.
The freedom to trade internationally section of the index includes; revenue from trade taxes, mean tariff rates, tariff, non-tariff trade barriers, compliance costs of importing and exporting, regulatory trade barriers, black market exchange rates, foreign ownership/investment restrictions, capital controls, and freedom of foreigners to visit.