White House economic adviser Alan Krueger took some ribbing from his boss this week. President Obama noted that Krueger will soon be leaving Washington to go back to his old job, teaching economics at Princeton.

Andy Wong/AP Apple was criticized in a Senate committee hearing Tuesday for using complex accounting to minimize the corporate taxes it pays. One key piece of the company's tax strategy: It funnels lots of its profits through subsidiaries in Ireland.

In the nearly impenetrable language that comes with his job, Federal Reserve Chairman Ben Bernanke told Congress on Wednesday that even though the economy is doing better, the central bank needs to keep giving it a boost.

Yahoo's $1.1 billion purchase of Tumblr could be considered a bargain compared with its other big-dollar bets. The company's history is dotted with pricey purchases of once-hot Web properties that had more promise than eventual purpose. A look back:

GeoCities, 1999: $3.7 Billion