The election and storm aftermath in the US as well as a power transition in China are among factors keeping key figures, including European Central Bank President Mario Draghi and US Treasury Secretary Timothy Geithner, from next week's Group of 20 summit in Mexico. "The G-20 rose to the challenge during the global crisis of 2008-09, but it seems irrelevant now," said Athanasios Vamvakidis, a currency strategist at Bank of America. "This makes all countries worse off."