Funding conditions at European banks improved following special policy measures introduced by central banks around the beginning of December. Before that time, many banks had been unable to raise unsecured funds in bond markets and the cost of short-term funding had risen to levels only previously exceeded during the 2008 banking crisis. Dollar funding had become especially expensive. The ECB then announced that it would lend euros to banks for three years against a wider set of collateral. Furthermore, the cost of swapping euros into dollars fell around the same time, as central banks reduced the price of their international.