Apple Inc. (NASDAQ: AAPL) and Beats Electronics discuss a content partnership. (Reuters)

The European Union will fine Microsoft Corp. (NASDAQ: MSFT) for violating agreements about use of its browser. (Reuters)

Google Inc. (NASDAQ: GOOG) begins to test a same-day delivery system for retailers’ products that have been bought online. (Reuters)

Five stocks that have accounted for much of the increase in the Dow Jones Industrial Average since it hit bottom in 2009 are International Business Machines Corp. (NYSE: IBM), Caterpillar Inc. (NYSE: CAT), 3M Co. (NYSE: MMM), Chevron Corp. (NYSE: CVX) and United Technologies Corp. (NYSE: UTX). (WSJ)

The BNSF Railway unit of Berkshire Hathaway Inc. (NYSE: BRK-A) will test the use of natural gas to run trains that now use diesel. (WSJ)

J.C. Penney Co. Inc. (NYSE: JPC) board members may replace its chief executive or sell the company if results do not improve this year. (WSJ)

Short sales greatly help the housing market by replacing foreclosures as a way to sell homes. (WSJ)

The Federal Reserve will not allow banks to use stress test rules that they have pushed for over the current ones. (WSJ)

China’s Tencent, a competitor of Twitter, will move into the United States. (WSJ)

China attacks Google for the dominance of its Android system in the smartphone market in the People’s Republic. (WSJ)

Microsoft discounts Windows 8 and Office in an attempt to increase sales. (WSJ)

State college education tuition surges as access to public money drops due to hard financial times for state governments. (WSJ)

Companies with employees who work from home at least one day a week have had increases in productivity and lower costs. (WSJ)

News Corp. (NASDAQ: NWSA) will launch a sports network on Fox. (WSJ)

Proxy advisory firm ISS urges investors not to vote for Hewlett-Packard Co. (NYSE: HPQ) Chairman Ray Lane and several other board members. (WSJ)

Fiat presses plans to buy all of Chrysler. (WSJ)

Some investors will fight the merger of MetroPCS Communications Inc. (NYSE: PCS) and T-Mobile. (WSJ)

The Institute for Supply Management reports that business expansion in the United States has been strong. (NYT)

Samsung makes a $100 million investment in Sharp. (FT)

Toyota Motor Corp. (NYSE: TM) discounts prices of its popular Camry because sales have fallen. (Bloomberg)

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