According to the national referendum in february 2014 about limiting the immigration even from the EU, the EU-Index analyses, how strong Switzerland is economically connected to other members of the EU, in fact how much Sitzerland is integrated in the European Union – an integration, which is possibly in danger now. The related document is linked here: Integration Switzerland-EU
See also the article “Schweiz ist stärker EU-integriert als viele Mitgliedsländer” by Jörg König and Renate Ohr in the Swiss newspaper “Neue Zürcher Zeitung” (NZZ) from August 12, 2014, p. 21. The article can also be found online.
