Corrections & Amplifications

General Electric stock fell 5.6% on Tuesday. The MarketBeat column on GE in the Money & Investing section Wednesday incorrectly referred to Citigroup shares when it should have said GE.

U.S. trade in goods and services with the rest of the world in November was $142.8 billion in exports and $183.2 billion in imports. A chart that accompanied a page-one article Wednesday on global trade incorrectly labeled the figures in millions.

The Korea Securities Dealers Association, an industry trade group, is investigating stock ratings issued by foreign brokerages on Korean companies last year. A World News article Tuesday about the arrest of a critic of the South Korean government said that government regulators were conducting the investigation.

On June 6, 2007, Food and Drug Administration Commissioner Andrew von Eschenbach testified before a House committee about the FDA's handling of the diabetes drug Avandia. A Marketplace article Wednesday incorrectly said he testified on that date before Sen. Chuck Grassley.

First Solar Inc.'s panels are priced lower than their crystalline silicon rivals because they have a lower energy-conversion efficiency rate, meaning more thin-film panels are needed to produce the same amount of electricity. An article in some editions Wednesday incorrectly said they have a better efficiency rate.

The estimated size of the crowd at Dwight Eisenhower's inaugural ceremony in 1957 was 750,000 people. A graphic that ran with the Numbers Guy column on Jan. 9 incorrectly labeled the figure as 750.