FLEXIBLE PURCHASE FREQUENCY MODELING

The authors present a general framework for purchase frequency modelin g that enables flexible fitting and convenient computation. Their easi ly described purchase frequency distributions subsume many previous mo dels and provide a connection between mixed Poisson marketing models a nd the conceptually distinct compound Poisson models. These distributi ons provide simple parametric equations for individual-level predictio n of second-period purchase frequency based on observed first-period p urchase frequencies. The results are applied to four marketing panel d ata sets.