Southern Co. replaced the head of its Mississippi utility amid growing concern about the cost of a "clean coal" power plant whose estimated price tag has ballooned to $4.3 billion.

Doug Lawler, the Anadarko Petroleum executive picked to be Chesapeake Energy's second-ever CEO, was hired after Chesapeake shifted strategy in its search to replace Aubrey McClendon.

Sprint Nextel said it agreed to enter into negotiations with Dish Network Corp. about Dish's $25.5 billion bid for the wireless carrier. But Sprint stopped short of saying Dish's offer could be superior to what Japan's SoftBank has already bid.

Stefano Pessina, the billionaire head of Alliance Boots, says his company's partnership with Walgreen and AmeriSource Bergen will give them unparalleled prescription-drug purchasing power and streamline delivery logistics.

Neiman Marcus is scaling back its physical operations in China amid a broader slowdown in the country for luxury goods.

Giorgio Armani's sales and profit jumped strongly last year, driven by growth in Asia, even as other brands are experiencing a drastic slowdown there.

United Continental completed its first flight of a Boeing 787 Dreamliner with paying passengers since the planes were grounded in January.

Yahoo will face a series of cultural challenges as it tries to make its $1.1 billion acquisition of Tumblr pay off.

Apple paid little to no corporate income tax to any nation on tens of billions of dollars in income over the past four years, Senate investigators disclosed ahead of a hearing on Tuesday.

Yahoo's $1.1 billion deal for Tumblr is a fairy-tale ending for the blogging site, which fetched a rich price despite its meager revenue. Many other highflying Web startups may not be as lucky.