Group of 20 chiefs are meeting at a two-day summit in Mexico today as Spanish borrowing costs soared to a euro-era record. With elections in Greece failing to damp the threat of contagion, policy makers are deliberating ways to stimulate the world economy if necessary, a Canadian official said. Merkel, who last week criticized U.S. debt levels, said June 15 she’ll press the G-20 to hold to prudent government spending.

“It’s not a complete beating up session, but Germany is the recipient of fairly caustic criticism from other members of the G-20,” Rob Carnell, chief international economist at ING Bank NV in London, said by telephone. “The pressure will be on Germany to give more ground and behind closed doors Merkel may well be more accommodative. There is ground for the euro zone to move, but just what it does depends on how much Germany digs its heels in.”

G-20 leaders are gathering in the Mexican Pacific resort of Los Cabos for a summit being dominated by the crisis in the 17- nation euro region that threatens to further erode the weakest global economy since the 2009 recession. Spain’s Prime Minister Mariano Rajoy is also attending, as the respite in markets after elections in Greece yesterday proved short-lived.