The diffusion model developed by Bass (Bass, F. M. 1969. A new product growth model for consumer durables. (January) 215–227.) constitutes an empirical generalization. It represents a pattern or regularity that has been shown to repeat over many new products and services in many countries and...

A nonuniform influence (NUI) innovation diffusion model for forecasting first adoptions of a new product is proposed. An extension of the Bass model, the proposed model overcomes three limitations of the existing single-adoption diffusion models. First, the current models generally assume that...

Marketing scholars and practitioners frequently infer market responses from cross-sectional or pooled cross-section by time data. Such cases occur especially when historical data are either absent or are not representative of the current market situation. We argue that inferring market responses...

We are indebted to John Little (Little, J. D. C. 1986. Comments. 107–108.) and Hugh Zielske (Zielske, H. A. 1986. Comments. 109.) for their valuable comments on our paper. Some of the comments merit further clarification and our response to these comments is provided below.

The question of whether a pulsed advertising policy is superior to an even policy (constant spending over time) is of practical relevance to both advertising practitioners and model builders. This paper presents an analytical model that can be used to analyze the impact of the various pulsing...

An increasing number of products are being sold with components that themselves are brand names. Examples are personal computers with Intel microprocessors and diet soft drinks that use the NutraSweet formulation. Branded components may alter consumers' valuation of the bundle, necessitating...

Innovation diffusion models are developed to represent the spread of a new product from its manufacturer(s) to its ultimate users. In the marketplace, however, the growth of a new product can be retarded by supply restrictions such as the unavailability of the product due to limitations on the...

Five awareness forecasting models embedded in their respective new product introduction models are compared. Conditions which govern the differences in the awareness estimates provided by the various models are delineated. Managerial implications of the results are discussed.

A maximum likelihood approach is proposed for estimating an innovation diffusion model of new product acceptance originally considered by Bass (Bass, F. M. 1969. A new product growth model for consumer durables. (January) 215–227.). The suggested approach allows: (1) computation of approximate...