Trade diversion

Trade diversion is an economic term related to international economics in which trade is diverted by the formation of a customs union.


Trade Series
International trade
History of international trade
Trade bloc
Free trade area
Customs union
Common market
Economic and monetary union
Trade creation
Trade diversion

Contents

Occurrence of Trade Diversion

When a customs union is formed, the member nations establish a free trade zone amonst themselves and a common external tariff on non-member nations. Previously a nation may have had a working trade relation with another nation outside the customs union in which each nation produced to their comparative advantages, the common external tariff may now make it not as efficient to trade with that non-member nation than with a nation within the member nation's free trade zone. In this respect, trade is diverted from the nation outside the union to a nation inside the union, lowering the total output of the good or service being traded.

Downside of Trade Diversion

Diverted trade may hurt the non-member nation economically and politically and create a strained relationship between the two nations. The decreased output of the good or service traded from one nation with a high comparative advantage to a nation of lower comparative advantage works against creating more efficiency and therefore more overall surplus. However, one can argue that the benefits of the free trade zone and trade creation will ultimately outweigh the introduction of trade diversion.

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