DAVOS. Switzerland. Feb 1: Key economic experts expressed concerns Friday over the likely stability of the future common European currency, reports AP.

C. Fred Bergsten. a former US Treasury official, said the relationship between the US dollar and the euro promises to be volatile.

Horst Siebert. President of Germany's Kiel Institute of World Economics, said "there are quite a few” risks facing Europe as it moves toward monetary union next year.

Both economists were featured speakers at the six-day World Economic Forum, a gathering of political and corporate leaders from around the world.

One troubling matter is that the two important countries of the European Monetary Union. France and Germany, have not yet found a common philosophy on the very essence of the monetary union." said Siebert.

German officials want to keep control of the money supply out of the hands of politicians, but the French regard monetary matters as political concerns that shouldn't be entrusted to "'technocrats," he said.

Siebert said another risk is that politicians fail to understand the underlying economic mechanics of the currency union.

Bergsten said the euro is likely to be a strong currency from the outset.