Germany's de facto loans to these banks is equivalent to around 30% of its GDP (this figure is based on the assumption that, in a worst case of a eurozone breakup, Germany was unable to share the cost with other eurozone members on the basis of an official burden-sharing formula).

BBC: Eurozone nations�� sovereignty v AAA

This has largely been achieved already by sharing rights to Formula 1 coverage.

BBC: Children's shows to leave BBC One

George Osborne, the shadow chancellor, clung for too long to his fair-weather formula about sharing the proceeds of non-existent growth.

ECONOMIST: Bagehot

The governors of the three states abandoned their latest attempt to agree on a formula for sharing the water last month, leaving matters in the Corps's hands.

ECONOMIST: Georgia opens a northern front in its battle with drought