“…In recent years, complaint research has focused mostly on psychological antecedents of complaining and non-complaining (e.g., East, 2000;Harris & Mowen, 2001;Kim et al, 2003;Zeelenberg & Pieters, 2004), whereas the material reasons why people complain receive much less attention. In the early days of complaint research, two to three decades ago, there was more focus on the importance of material reasons for complaining (i.e., the size of the loss or the importance or seriousness of the defect or deficiency; e.g., Bearden & Oliver, 1985;Day, 1984;Day & Landon, 1977;Didow & Barksdale, 1982), but usually the conception of the psychological reasons why some people are more likely to complain than others under the same material circumstances were relatively simple. Ignorance with regard to both material reasons and psychological antecedents is serious, but for different reasons.…”