1) Agree with Arnoutf on research: The section right now is named Education and research and with more than half of the content it covers student exchange. This is not Economy, very simple. There is also no reason to split the section 2) A section named Single Currency is not possible because there is no single currency, there are 15 ! 3) Competition is important, correct! Therefore it fits perfectly in an introduction of Economy or even in Single market. Note that this article has overlength size.