Word-of-mouth can be positive and negative. If a customer recommends to other people about service or good that is
positive WOM. However, if a customer complains to other people about service or good that is negative WOM. Of course,
marketers promote positive WOM rather than negative WOM. But in the real world, the situation is different. According to
Wang’s study
satisfied consumer may or may not result in positive WOM about service, while a dissatisfied
consumer has a strong tendency to tell others about his/her anger and even exaggerates the bad experience. Ennew et al. (2000)
indicate that positive WOM from satisfied customers can increase purchases