Briefs

The Obama administration has imposed import duties of as much as 4.73 percent on solar-energy equipment from China, backing a complaint from U.S. solar makers that said their mainland rivals were receiving improper government subsidies. Shares of the Chinese solar companies rallied on the news, as Wall Street had been expecting steeper tariffs. Bloomberg New Energy Finance analyst Anthony Kim called the move a “symbolic” gesture, noting that Chinese solar modules are 10 percent cheaper than similar products made elsewhere. Still, the duties may persuade some Chinese companies to shift some production to the U.S.

Nissan Motor plans to revive its Datsun brand, which it phased out in 1981, to boost sales in developing markets. In 2014 the Japanese automaker will introduce two Datsun models in Russia, India, and Indonesia and expects the marque to account for as much as half its sales there by 2017. Nissan, which gets half its revenue from Japan and the U.S., needs to rev up sales in emerging markets to reach its goal of boosting its share of the global market to 8 percent within five years, up from 5.8 percent in its last fiscal year.