European Central Bank staff have begun studying a potential revamp of their inflation goal, according to officials familiar with the matter, in a move that could embolden policy makers to pursue monetary stimulus for longer. The staff are informally analyzing the institution’s policy approach, including the question of whether the current target of consumer-price growth “below, but close to, 2%” is still appropriate for the post-crisis era. President Mario Draghi favors a “symmetrical” approach, meaning flexibility to be either above or below a specific 2% goal, the officials said, asking not to be identified as the ... (full story)