(By Mayur Pahilajani - iStockAnalyst Writer)

As global companies cope up with the "economic Pearl Harbor" by selling assets and stakes, Warren E. Buffett is out on a shopping spree. Investment managers and other market analysts on Wall Street believe that the firms are prepared to accept capital from Buffett as it boosts investors' confidence because of his strategic investments.

"If you don't react to Pearl Harbor in two or three weeks, you're that much behind in the war you should have been fighting," billionaire investor said Wednesday in a television interview while commenting on the U.S. financial crisis.

Buffett, who recently said the U.S. economy suffered a cardiac arrest, invested $3 billion on Wednesday in General Electric Co. (NYSE: GE), which needs to raise up to $15 billion through sale of common and preferred stocks.

"GE is the symbol of American business to the world. I have been a friend and admirer of GE and its leaders for decades," the Omaha, Nebraska-based Berkshire Hathaway, Inc (NYSE: BRK.A) Chairman and CEO Buffett commented on the on firm. "They have strong global brands and businesses with which I am quite familiar. I am confident that GE will continue to be successful in the years to come."

But the Fairfield, Connecticut- based General Electric is not the only large company listed on his investment inventory. The world's renowned stock picker also believes that the outlook of Goldman Sachs Group Inc. (NYSE: GS) looks strong and will survive the current credit crisis.

He recently infused $5 billion worth capital in the form of perpetual preferred stock in the New York-based Goldman Sachs late September. Buffett's personal fortune exceeded $60 billion (43 billion euros) last year, while he had $44.3 billion in cash at the start of the year.

Early this week, the Des Moines, Iowa-based MidAmerican Energy Holdings Co., a subsidiary of Buffett's Berkshire Hathaway, announced its plans to invest around $231 million in BYD Co., a Chinese car and battery maker. The investment represent 10 percent of the total stake of the company, which is a leading producer of nickel and lithium-ion batteries for mobile handsets of companies including Nokia (NOK), Motorola (MOT) and Samsung.

Also, the company expects to manufacture and roll out fully electric cars before the end of next year and will be prepared to export to the U.S. by 2010. Buffett's MidAmerican has plans to help BYD to launch the fully electric car and begin selling at the price of $20,000.

On September 18, Berkshire Hathaway also agreed to purchase Constellation Energy Group Inc. for $4.7 billion, or $26.50 a share. The list of his strategic capital infusion is long as his investments are diversified in the companies like Wrigley gum (WWY), Coca-Cola Company (NYSE: KO), American Express Co. (AXP) and Kraft Foods (KFT).

Buffett considers the U.S. economy to recover and expand over the next 10 years as the economic recession and global credit crunch may not be over within the next few months. “You're going to have more people unemployed, but it may be 7 percent instead of 9 percent. That's 3 million people. You don't want to see 3 million people unemployed,” Buffett said in the interview from San Diego with PBS's Charlie Rose on late Wednesday.