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Sigmundur Davíð Gunnlaugsson, Iceland's prime minister, discusses the country's role in NATO and says that the world might be going back "to the world of the Cold War".
Tony Cordesman, Arleigh A. Burke chair in strategy at CSIS, says that NATO countries need to respect the defense spending requirement otherwise "the best NATO statement in the world is hollow".
Nino Tronchetti Provera, managing partner and founder of Ambienta, discusses Europe's energy policies and environmental investing.
Anshu Jain, co-CEO of Deutsche Bank, says that the group has taken steps to counter the "challenging" low interest environment and says "much more" from the ECB won't make "that big a difference".
Anshu Jain, co-CEO of Deutsche Bank, says the group has excellent momentum going into the second half of the year.
Margareta Drzeniek-Hanouz, senior economist at the World Economic Forum, comments on the Global Competitiveness Report and the challenges facing the global economy.
Edward Hunt, senior defence consultant at IHS Jane's, discusses the upcoming NATO meeting in Wales and says the Ukrainian crisis is very complicated as it doesn't fall under the organisation's charter.
European shares opened higher on Wednesday as investors focused on the European Central Bank's policy meeting on Thursday, with some anticipating it could unveil new stimulus measures.
Gautam Batra, investment strategist at Signia Wealth, discusses the euro zone's economy and says that the ECB is at risk of "falling short" of market expectations.
Nick James, director of technology equity research at Numis Securities, discusses Samsung ahead of the expected release of its Note 4 device.
Robert Manz, managing partner at Enterprise Investors, says that despite the weak data, positive trends are emerging from central Europe and that right now is an "excellent time" to invest there.
Patrick Legland, global head of research at Societe Generale, says all indicators indicate Europe has slowed down and that the markets would need "far more ammunition" from the ECB to be reassured.
App Annie provides analytics and market data for the app economy explains CEO, Bertrand Schmitt, adding that growth has been "exceptional" and that there are still a lot of growth opportunities ahead.
Adam Tyler, CEO of the National Association of Commercial Finance Brokers, says that lending to SMEs through less traditional methods - such as broker-enabled lending - has been steadily growing.
Olly Burrows, senior banks analyst at Rabobank, says the asset quality review is a difficult balancing act for the ECB as it must be tough enough to be credible but not so tough that it crushes confidence.
Jo Twist, CEO of UKIE, and Claire Enders, CEO of Enders Analysis, discuss the appeal of esports and how it could be lucrative for many companies.
Claire Enders, CEO of Enders Analysis, says the rise of BT Sport has not had a negative effect on its competitors.
CNBC's Samantha Loring looks at the geopolitical hotspots that could escalate and affect investments.
European shares edged higher on Tuesday morning as investors continued to monitor events in eastern Ukraine and looked ahead to new economic data from the euro zone.
Ian Harnett, co-founder and chief investment strategist at Absolute Strategy Research, says the U.K. economy bears similarities to the 1950s and stocks are set to "blast away".
Cutmore anchors CNBC’s flagship "Squawk Box" in EMEA; the three-hour show bookends the opening of European equity markets.
Based in London, Tso co-anchors CNBC flagship show in EMEA, Squawk Box, a show that sets the news agenda every trading day.
Sedgwick co-anchors CNBC's flagship program "Squawk Box" (Europe) and is also CNBC's OPEC reporter covering major meetings.