Germany is open to a discussion over whether countries that share the euro currency should harmonize their fiscal policy, German Finance Minister Wolfgang Schaeuble said.

In an interview published on Sunday in Bild am Sonntag newspaper, Schaeuble said the decision made at the euro's creation to not integrate state finances into a European framework could be addressed anew.

The basic decision was for fiscal and budgetary policy to be decided on the national level. If that is to be changed, then we can talk about it, he said.

Berlin has opposed calls by Spain and other countries to move toward a full-fledged fiscal union in the 16-nation bloc but appeared last week to have agreed to a limited form of policy coordination.

Looking forward, Schaeuble predicted that member states of the European Union would come ever closer politically.

In ten years we will have a structure that corresponds much stronger to what one describes as political union, he said.

In an advance portion of the interview released on Saturday, Schaeuble said the euro currency is here to stay, and warned those betting against its survival that they are making a mistake.

European leaders meet next week to discuss ways to solve a euro zone debt crisis which has triggered bailouts for Greece and Ireland and which analysts say could engulf other countries. They are expected to agree the terms of a permanent rescue mechanism for the bloc.

Germany and France have pledged to better align their tax and labor policies to foster convergence in the euro zone, but have rejected calls for an increase in the bloc's rescue fund and joint sovereign bonds.

Pressure on high-deficit euro members eased slightly over the past week after the European Central Bank bought government bonds in a thin end-of-year market, pushing down the borrowing costs of countries on Europe's southern periphery.

(Writing by Brian Rohan; Editing by Louise Heavens)

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