The abundance of highly disaggregate data (e.g., at 5 second intervals) raises the question of the optimal data interval to estimate advertising carryover. The literature assumes that 1) the optimal data interval is the inter-purchase time, 2) too disaggregate data causes a disaggregation bias...

To examine cross-country diffusion of new products, marketing researchers have to rely on a multivariate product growth model. We put forward such a model, and show that it is a natural extension of the original Bass (1969) model. We contrast our model with currently in use multivariate models...

With a new author team contributing decades of practical experience, this fully updated and thoroughly classroom-tested second edition textbook prepares students and practitioners to create effective forecasting models and master the techniques of time series analysis. Taking a practical and...