Characteristics used to define smaller groups within a list (essentially, lists within a list). Although very small, select groups may be very desirable and may substantially improve response; increased costs, however, often render them impractical.
The Mathematics of Direct Sales and Performance Marketing Profitability: How to Make One-Shot and Subscription-Based Products and Services Viable
Before you even begin to think about the detailed techniques of performance marketing and selling your product or service directly – the market, the design of the material, the method of order fulfillment – you …