The Risk and Stochastics Conference, held at the Royal Statistical Society in April 2015, brought together academics from the worlds of actuarial science, finance, probability and statistics to celebrate the achievements of Professor Ragnar Norberg as he turns 70.This book is a collection of articles written by speakers of the conference, themselves respected academics who have influenced and been influenced by the life and work of Professor Norberg. Celebrated in this book are his professional and academic achievements, most significantly the instrumental work he put into setting up the world-renowned Risk and Stochastics Group at the London School of Economics (LSE). Subjects covered include discussion of risk measurements, ruin constraint, supporting stable pensions, filtration in discrete time, Riesz means and Beurling moving averages and orthonormal polynomial expansions. Also featured are notes from contributors giving account of their personal relations with Professor Norberg, as well as a short autobiography from the man himself! For graduate level students and researchers interested in the life and work of Ragnar Norberg, this book provides a unique opportunity to reflect on and understand key findings and ground-breaking research in modern actuarial and financial mathematics and their interface.