Mr. Darren S. Cordier has co-authored with Mr. Steve Hyden the article "Using Trendlines to Determine Survivor Curves for the Valuation of Customer Relationships" for the October/November issue of Financial Valuation and Litigation Expert, a bi-monthly journal presenting views and tools from many of the leading experts in financial valuation, forensics/fraud, and litigation services.

In this article, an overview of practical issues in determining surivor curves for use in projecting revenue for valuing intangible assets is addressed. The article reviews the types of survivor curves, methods of measurement, utilizing trendlines to extrapolate beyond observed data, and application of surival curves to derive estimated revenue.