Dan Akerson, who became chief executive officer at General Motors Co. in 2010, gives himself a “B” for his performance so far. He has too much work to do to think about retiring for at least another year or two, he said.

YPF SA, Argentina’s largest oil producer, is asking creditors to issue waivers on part of its $1.6 billion debt after the government’s takeover and said it risks being delisted from the New York Stock Exchange.

U.S. stocks swung between gains and losses, after the Standard & Poor’s 500 Index fell to a three- month low, as concern about Europe’s debt crisis offset better- than-estimated data on housing starts and industrial production.

Mitt Romney, attacking President Barack Obama for the second consecutive day for swelling the federal debt, said the president has done “almost nothing to fix” the deficits amassed over eight years by former President George W. Bush.

House Speaker John Boehner revived Republicans’ insistence that any increase in the nation’s debt limit be matched by at least as much in spending cuts, positioning his party for a renewed standoff with Democrats over the federal budget.

Goldman Sachs Group Inc. managing director Henry Cornell, at the Whitney Museum American Art Award dinner last night, talked about art and work.

French President Francois Hollande named Pierre Moscovici, a former European Affairs minister and a self-proclaimed social democrat, his finance minister.