About the Author: SHAYNE FLETCHER has a BSc. from the University of Sydney, Australia. He has had more than 10 years experience working for major investment banks in London, The Netherlands and Japan. In 2009 he founded QuantSoft (http: //www.quantsoft.co.jp) providing technical consulting services to meet the financial engineering programming needs of its clients. CHRISTOPHER GARDNER has a PhD in Applied Mathematics from King's College, London. He began his career working for UKAEA Fusion at Culham Laboratory before moving to the City of London. He has 10 years experience working as a Quantitative analyst. He is currently working on the pricing of Life derivatives for the Asset Management Pricing Desk at Swiss Re.