Mersch says no constraints on ECB in acting - WSJ

The European Central Bank does not face any limitations if it decides to act, a senior policy maker told the Wall Street Journal, warning that there could be a risk of low oil prices becoming entrenched. "There are several factors which have intensified," Yves Mersch, who sits on the ECB's Executive Board, told the paper, referring to the weeks since December. "One is the oil price ... That is something to assess - the volatility - whether you look through it or whether there is a risk of it bec