The present research is conducted with the aim of reviewing the mediating role of demographic characteristics on the relation of investors’ special characteristics with behavioral biases of investors in the supply chain of companies listed in agricultural products hall in Iran mercantile exchange company. The present research is from the descriptive-survey type and its statistical population includes Iran agricultural mercantile exchange with about ۳۸۴ people in total. The present research is conducted as a random sampling method. In this research, in order to measure content validity, opinions of advisors and supervisors have been used. Cronbach’s alpha test showed that the reliability of all variables is in the acceptable domain. In order to gather the required data to test the research hypotheses, the questionnaire is used. For descriptive analysis of data, tables, diagrams, and distribution index and for descriptive analysis of statistics, mean-median-frequency, mean of research variables and Kolmogorov-Smirnov test and hypotheses test in SPSS۲۰ software package has been conducted. Generally, research findings indicated that there is a significant relationship between investors’ special characteristics with behavioral biases of investors among companies listed in knowledge-based agricultural products hall. Also, results indicated that financial knowledge has the highest correlation coefficient in the estimated empirical structural model.

Agricultural section, Behavioral Biases, Investor characteristics, Iran capital market, Supply Chain