On a recent trip to London you decided to visit the Bank of England museum, and played the infamous “Monetary Policy Balloon game”. In fact, you played it so well an alarm sounded and several men wearing black suits asked you to accompany them “upstairs”. You are told that the Governor, Mervyn King, has taken ill and they are looking for a stand-in. You have the high score, so they turned to you. The future of the British economy is in your hands. Academics, policymakers, the media and the general public will depend on YOU to do the right thing. But what is it?