Leaders of some of the world's biggest banks met Thursday on the sidelines of the World Economic Forum in Davos, Switzerland, to plot ways to reassert their influence with regulators and governments.

Chief executives, including Bank of America Corp.'s Brian Moynihan and UBS AG's Oswald Gruebel, convened one week after President Obama shocked financiers with plans that may force large banks to limit their size and curb investments in hedge funds and private equity.

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