Reflection on Mum Effect: Analysis of the role of culture on the employee performance and organizational communication (Case of Study: governmental organizations in city Semnan)

Mum effect is the situation when a person decides to withhold important information for certain reasons. The main identity of the Mum Effect is the greater reluctance of the individual to give bad news about his desire to give good news and thus to be silent. The main purpose of the present research is to influence Hofstede culture dimensions on the employee performance and organizational communication given the impact of Mum Effect. The statistical population of this study is employees of governmental organizations in Semnan. According to Morgan table, a sample of 285 people was selected. Data gathering tool was a standard questionnaire (Hofstede, 1994; Ramingwong & Snansieng, 2013; Yildirim, 2014 and Koopmans et al., 2012). Structural equations’ modeling was used to analyze research data with Smart-PLS software. The results showed that power distance index, individualism, masculinity, uncertainty avoidance and long-term orientation have a positive and significant effect on the Mum Effect. Other findings of the research have a negative effect on the Mum Effect on employee performance with β (-0/488) and organizational communication with β (-0/514). What distinguishes this study from the studies of the dimensions of Hofstede''''s culture is that the present study emphasizes the role of the variable of Mum Effect that was neglected in previous research.