Because new products are critical to success and survival, the evaluation of new product ideas receives much attention. In the early stages of product development, concept evaluation models are used to predict market share and/or sales of hypothetical product concepts. These models have focused...

Schmittlein and Mahajan (Schmittlein, D. C., V. Mahajan. 1982. Maximum likelihood estimation for an innovation diffusion model of new product acceptance. (Winter) 57–78.) made an important improvement in the estimation of the Bass (Bass, F. M. 1969. A new product growth model for consumer...