Market players put their jobs on the line with every position they take. Any fixed income investor in the circumstance of being granted one wish would probably want to know what interest rates are going to do in the future. Economists and others have constructed models of interest rate behaviour, but no model works in all circumstances. The main aim of this book is to straddle the different worlds of theoretical models and practical market experience, while offering an interdisciplinary framework for fixed income investing and trading.