Warren Buffett, perhaps the world’s most admired investor, said on Thursday the financial panic that gripped the globe last year is a thing of the past, even as the nation’s economy’s struggles persist.

"The financial panic is behind us," the world’s second-richest person said at Columbia University’s business school. "Our economy was sputtering, still is sputtering some."

Buffett, 79, nevertheless said there is greater opportunity for investments inside the country than outside, noting that the nation’s economy is far larger than any other.

Last month, preliminary government data showed the U.S. economy expanded in the third quarter, the first three-month period of growth since the second quarter of 2008.

Nonetheless, the unemployment rate last month reached 10.2 percent, the first double-digit reading in 26 years.

Buffett last week made a big bet on the economy when his Berkshire Hathaway Inc. agreed to pay about $26.4 billion for the 77 percent of railroad company Burlington Northern Santa Fe Corp. that it did not already own.

Separately, Buffett advised the government not to coddle companies that need federal bailouts to survive or to preserve sufficient capital. "More sticks are called for," he said.