A Portfolio Management System for Catastrophe Property Liabilities

Abstract
As catastrophe modeling systems become more sophisticated, the property insurance portfolio manager can receive better account loss information than ever before. We describe a software system called SmartWriter which effectively processes this information for the portfolio manager. Specifically. the system determines: Appropriate pricing for an account; Which accounts to remove from a portfolio to maximize risk-adjusted return; How to merge two books of business; Where to grow or shrink business geographically to achieve maximum diversification benefits. We utilize a number of optimization techniques to address these issues. We formulate the problem as a large mathematical program with numerous loss scenarios (10,000 or more). We then describe an algorithm to solve the resulting stochastic optimization problem in order to maximize risk-adjusted return. expected utility, or other user-defined performance measures. The SmartWriter system is a PC-based Windows application. USF&G, a large property and casualty insurance company, currently employs SmartWriter as an integral part of its decision making process.
Volume
Summer
Page
1-14
Year
1998
Categories
Actuarial Applications and Methodologies
Investments
Portfolio Strategy
Financial and Statistical Methods
Extreme Event Modeling
Business Areas
Fire and Allied Lines
Publications
Casualty Actuarial Society E-Forum
Authors
Adam J Berger
John M Mulvey
Kevin Nish
Robert Rush