Nasser Marafih, CEO of Qatari Qtel, discusses the rebranding of his company as "Ooredoo", a move that was announced this week at the Mobile World Congress in Barcelona, Spain.

Euro zone shares sank to three month lows on Tuesday after an Italian election stalemate renewed concerns about the future of the single currency area.

Don Smith, government bond strategist at ICAP, tells CNBC why huge uncertainty in the markets will affect the Italian 10 year bond auction on Wednesday.

Jeffrey S. Gordon, president & CEO of Syniverse, tells CNBC why a change in European regulations to allow greater consumer freedom in choosing roaming networks means mobile companies will have to really optimize their service if they want to succeed.

Tina Fordham, senior political analyst at Citi, tells CNBC that a combination of the Italian constitution and political maneuvering mean uncertainty is likely to drag on for months.

Loredana Federico, Italy economist at UniCredit, tells CNBC why a short-term coalition excluding Silvio Berlusconi is the most likely outcome of the Italian election.

Annalisa Piazza, economist at Newedge, tells CNBC that if the competing political parties want to keep Italy in the euro zone and retain its credibility they must find a way to marry their principles with continued economic reform.

Marco Cristofori, head of equity department at Centrobanca, tells CNBC why investors should steer well of getting involved with anything which is exposed to Italy as he expects a 10% market slowdown.

Ross Westgate reports from the International Business Festival where experts are discussing how to generate growth Britain.

Mark Haefele, head of investment at UBS Wealth Management, tells CNBC that the long-term trade is long British pound versus Euro.

Viber CEO Talmon Marco explains how his messaging and voice-calling app, launched in 2010 to rival Skype, is adding half a million users per day.

Investec Head of Research John Haynes says he is optimistic a Berlusconi-majority in the Italian Senate will not prevent progress in structural and fiscal reforms continuing.

Britain's finance minister, George Osborne, says markets are still confident in his austerity policies, despite the Moody's downgrade on Friday.

Steve Sedgwick asks what now for Italy, as markets react to the news of an inconclusive election result.

Karen Cho takes you through the European market open, where stocks have dropped on the inconclusive Italian election result.

Alberto Martinelli, professor of Political Science at Universita' La Statale, tells CNBC there is no majority possible in Italy even with Mario Monti.

Alberto Mingardi, director general at the Bruno Leoni Institute, tells CNBC that Italians voted against un-credible policy proposals and went for the entertainment.

Stephane Richard, CEO of France Telecom-Orange, tells CNBC that the European telecoms industry is weak, pays too much tax and needs a digital strategy.

The world's top phone makers have been unveiling their products at the Mobile World Congress. Kelly Evans takes a look at Sony.

Jane Foley, senior currency strategist at Rabobank, tells CNBC that market euphoria has been disconnected from the fundamentals and the Italian election is a wakeup call.