Bloomberg Boeing Co. and Embraer SA won orders valued at $2.3 billion from United Airlines in a boost to an alliance the two planemakers announced earlier this month. United Continental Holdings Inc. will buy 25 Embraer E-175 planes and four Boeing 787-9 Dreamliners, it said in a statement. At list prices, the Embraer jets are worth about $1.2 billion in …

Bloomberg Amazon.com kicked off its big Prime Day sales promotion with technical glitches on its website and app, threatening its 36-hour sales extravaganza. Trouble on the site spiked just as the event began at 3 pm Eastern time, but declined significantly within a couple of hours, according to Downdetector.com, which monitors web trouble. Shoppers were expected to spend $3.4 billion …

Bloomberg Amazon.com Inc.’s increase earlier this year to the price of Prime membership hasn’t blunted momentum for the popular subscription program that boasts more than 100 million global members, a company executive said. “We continue to see the same trends” since the price hike — to $119 a year from $99 — was announced in April, Amazon Prime VP Cem …