Chief economist Øystein Dørum at DnB NOR says the euro's main success is in the financial stability, including lower inflation and lower interest rates, it has given the EU countries. Norway is not a member of the EU.

This is always a good thing, Dørum says, even for Norway, but in itself it’s not enough of a reason to say that Norway would benefit from going over to the euro as its currency, reports newspaper Aftenposten.

The reason is the large influx of oil money in the Norwegian economy, which makes it practical to keep some flexibility in the country's interest-rate politics.

Director Daniel Gros at the Center for European Policy Studies in Brussels agrees with Dørum's analysis.

Today the European Monetary Union, the EU's cooperation on a common currency, consists of Germany, France, Belgium, the Netherlands, Luxembourg, Spain, Portugal, Greece, Finland, Ireland, Italy, Slovenia, Austria, Cyprus and Malta.

This month marks 10 years since the 12 first countries agreed to initiate the new common currency. From January 1, 2002, the currencies in the member lands were replaced by the common currency the euro.