Refer to the above table. Demand is unit elastic between the prices of

Trade barriers are politically popular because

A) they are a way to avoid trade wars and still protect domestic producers. B) people recognize their use as a negotiating tool in international relations. C) their benefits are widespread, while their costs are highly concentrated. D) their benefits are concentrated, while their costs are widespread.

The European Union started out as a

A) regional trade agreement. B) union of nations with identical currency. C) union of nations where the same language was spoken. D) union of nations with identical tariffs.