T-Mobile US chief will need more than marketing skills for future challenges, including finding billions of dollars to buy more spectrum

Mike Shearwood, Karen Millen's chief executive, says the escalation of tensions over the Ukraine crisis could hurt British store groups

Start-up accelerator, that is expected to list later this year, seeks to be the biggest internet group outside the US and China

Life is tough for Italy's banks. Once the asset quality review is complete this autumn, consolidation should be high on the agenda

Antonov An-140 took off from city's Mehrabad Airport and crashed immediately, reportedly killing 39 passengers and crew, with nine taken to hospital

Roiss says rising tensions between EU and Moscow may lead to minor delays over South Stream scheme but long-term logic means project will go-ahead

Private equity group is set to acquire Shell's stake in the Haynesville Shale formation as the energy company retreats from souring US investments

Christopher Rokos, a founding partner of the publicity-shy hedge fund, seeks to overturn a five-year, non-compete clause before launching his own hedge fund

The way out, if there is one, will be found not through force but through the despised arts of diplomacy

The start-up accelerator has had to fight back against a perception that it is a ‘clone factory' that copies and skilfully exploits other people's innovations

The private equity group buys the French and UK focused automotive parts distributor amid signs of an upturn in the European car market

Indian steelmaker JSW Steel is close to buying the bankrupt Italian producer, in a sign of renewed interest in Europe's recovering steel market