[soo-pruh-nash-uh-nl] 
| outside or beyond the authority of one national government, as a project or policy that is planned and controlled by a group of nations. |
| su·pra·na·tion·al (sōō'prə-nāsh'ə-nəl, -nāsh'nəl) adj. Extending beyond or transcending established borders or spheres of influence held by separate nations: a supranational economy; supranational federations. |
Supranational
An international organization, or union, whereby member states transcend national boundaries
or interests to share in the decision-making and vote on issues pertaining to the wider grouping.
Investopedia Commentary
The European Union and the World Trade Organization are both supranationals. In the EU, each member votes on policy that will affect each member nation. The benefits of this construct for the EU are the synergies derived from social and economic policies along with a stronger presence on the international stage.
Related Links
What Are Central Banks?
Formulating Monetary Policy
See also: Central Bank, EUR, European Central Bank - ECB, European Monetary System - EMS, Synergy
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