Several empirical studies have shown that apparently competing companies cooperate extensively through an informal exchange of valuable information. Since international inter-firm relations have become elementary in many markets, the informal information exchange across national borders gains...

By the means of an empirical survey this study shows that the evaluation of the success of brand extensions apparently contains a high degree of uncertainty. In order to reduce this uncertainty a method is developed which helps to find out whether a planned brand extension will prove successful...

Eliminating unacceptable attribute levels when measuring consumer preferences represents an important problem, both academically and managerially, since including unacceptable attribute levels in preference measurement may cause distorted parameter estimates and result in inaccurate estimation...