Quality is not only the basis for business survival and development but also a key issue that cannot be ignored in supply chain management decisions. In practice, impact of quality on goodwill does show an immediate effect, there dynamic delayed effect. Therefore, we developed model considers effect goodwill. Firstly, constructed differential equation based Nerlove–Arrow two-channel competitive...

Segmentation is a core strategy in modern marketing, and age-specific segmentation based on the age of the consumers is very common in practice. Age-specific segmentation enables the change of the segments composition during time and can be studied only by means of dynamic advertising models. Here we assume that a firm wants to optimally promote and sell a single product in an age-segmented mar...