What happens if the U.K. leaves the EU? World leaders will be all ears tomorrow when British Prime Minister David Cameron delivers a high-stakes speech on Britain's role in the European Union. U.S. airlines make more money by offering fewer seats. Spirit Airlines CEO Ben Baldanza discusses the business of bargain basement travel.

The U.K.'s coalition government has just passed the halfway point in its first term. Critics say its continuing tough talk on austerity is constraining growth.

This weekend, voters in both France and Greece will go to the polls, and the expectation is that they'll be in a bit of an anti-austerity mood. One clue came yesterday in the U.K. where voters delivered big losses to the ruling Conservative party.

Marketplace foreign editor John Buckley discusses how Cameron's rejection of Europe's plan has helped his party in the polls.