The current situation in the euro zone is "untenable" and policymakers will have to either pursue greater European economic integration or see countries exit the euro, George Magnus, Senior Economic Advisor, UBS told CNBC Tuesday.
France's Casino warned archrival Carrefour on Monday that a merger of its Brazil unit and the country's biggest retailer, Grupo Pao de Acucar, could not go ahead without its consent.
A Greek default is coming and the European authorities trying to avoid it will have to face up to it eventually, a leading economist told CNBC Monday.