Switzerland’s government said it may consider additional measures including negative interest rates to support the country’s central bank in its fight against the appreciation of the Swiss franc.

The government is willing to “examine the feasibility of supporting measures within the context of an overall consideration,” it said yesterday in response to a parliamentary inquiry by Green Party member Louis Schelbert. Part of the supporting measures would be the introduction of negative interest rates, it said.

Still, the most effective tools to fight excessive exchange rate fluctuations remain in the areas of foreign exchange and monetary policy that are the Swiss National Bank’s responsibility, the government said.