The EU should focus on the single market, international trade, the environment and foreign policy.

BBC: Viewpoints: How experts see UK role in EU

By devaluing a currency in a floating exchange rate environment, the result is that trade booms and foreign reserves balloon.

FORBES: We're All Currency Manipulators These Days

The European Union wants negotiations about rules on how foreign investors can be treated, about anti-monopoly policy and about the relationship between trade and the environment.

BBC: Key trade talks in the balance