This week the world's leaders and policy makers convene in Davos, Switzerland. The focus of their meeting this year is how to develop a new world model. As the Eurozone plunges into deeper crisis with a Greek default almost inevitable now, what next for Europe and the global economy?

Mohamed El Erian, the CEO of the world's biggest investment firm, PIMCO, discusses the Eurozone crisis and gives his predictions on the future of the global economy. He also looks at the Egyptian revolution and the future of the country.

Also, Frank Luntz, the American pollster and Republican strategist, will look at the race for the Republican nomination for the presidency ahead of the Florida primary, which is coming up next week.

Sanusi Lamido Sanusi, the governor of Nigeria's central bank, discusses the deadly Boko Haram attacks that have left hundreds dead in Nigeria, as well as the impact of fuel subsidy cuts and the resulting strikes there.

This week, Frost Over the World also marks the first anniversary of the Egyptian Revolution where thousands of citizens - irrespective of religion or political orientation - took to the squares and streets, campaigning for freedom and democracy.

Hatem Saif El Nasr, the Egyptian ambassador to the UK, describes changes in Egypt. Has there been real progress since the end of Mubarak's regime?

Marwan Bishara, Al Jazeera's senior political analyst, also joins the show to discuss his new book, The Invisible Arab, to talk about the other uprisings that shook the Arab world and to tell us what we can expect across the region in the coming months.