Description: Reviews book entitled Stochastic Theory of a Risk Business by Hilary Seal. Book presents a comprehensive survey of the literature on the mathematical foundations of risk taking as a business.

Description: This paper presents an introduction to collective risk theory. In collective risk theory one seeks to investigate directly the risk enterprise as a whole. Primary interest is focused not upon the gains, losses, or claims from individual policies but upon the amount of total claims or the total gain arising from all the policies in the portfolio considered. Followed by several discussion papers submitted.