MILAN/MAD RID (Reuters) - Greece's uncertain future as a euro member pushed Italian and Spanish borrowing costs higher at debt sales on Monday, while investors seeking refuge in higher-rated government paper further drove German six-month yields towards zero at auction.
The two largest countries most vulnerable to a worsening of the euro zone debt crisis tapped the markets as investors globally dumped riskier assets, unnerved by the prospect of fresh elections in Greece that would probably hand first place to a leftist anti-bailout party.