Investigating the Relationship between Political Rumors and Perceptual Error of Tehran Stock Exchange Investors by Considering the Intermediary Variable of Biographical Characteristics of Investors by Structural Equation Modeling

The present study investigates the role of the mediator of the biographical characteristics of investors on the relationship between political rumors and their perceptual error by modeling structural equations. The present study was conducted in terms of the method of correlation research in terms of the purpose of an applied research and in terms of data collection method, a quantitative study. The statistical population of the study was investors of Tehran Stock Exchange with unlimited number and the sample was estimated using Morgan and Kargzi tables with a simple random sampling of 384 people. The tool for measuring political rumors, the 9 questionnaire of Khademi Grashi and Ghazizadeh (2007) and the instrument for measuring perceived error in the questionnaire of Saadi 24 et al. (2010). The results of structural equations showed that political rumors affected the perceived errors of investors in Tehran Stock Exchange. Also, the dimensions of political rumors, including statements by political officials, political developments inside the country and foreign political developments, increased the level of perceptual error of investors. Also, biographical characteristics of investors influenced the relationship between political rumors and its dimensions with perceptual errors of Tehran Stock Exchange investors.