Manage marketing by the customer equity test.

Managers have recently begun to think of good marketing as good conversation, as a process of drawing customers into progressively more satisfying relationships with a company. And just as the art of conversation follows two steps--first striking up a conversation with a likely partner and then maintaining the flow--so the new marketing naturally divides itself into the work of customer acquisition and the work of customer retention. But how can managers determine the optimal balance between spending on acquisition and spending on retention? Robert Blattberg and John Deighton use decision calculus to help managers answer that question. That is, they ask managers to approach the large, complex problem through several smaller, more manageable questions on the same topic. Then they use a formal model to turn those smaller judgments into an answer to the larger question. The ultimate goal, the authors say, is to grow the company's customer equity the sum of all the conversations-to its fullest potential. Recognizing that managers must constantly reassess the spending points determined by the decision-calculus model, the authors also provide a series of guidelines and suggestions to help frame the issues that affect acquisition, retention, and customer equity. When managers strive to grow customer equity rather than a brand's sales or profits, they put a primary indicator of the health of the business at the fore front of their strategic thinking: the quality of customer relationships.