Milad Gholamnejad - Department of Industrial Engineering Imam Hossein Compressive University Tehran, Iran
Omid Amidi - Department of Industrial Engineering Imam Hossein Compressive University Tehran, Iran
Alimohammad Ahmadvand - Department of Industrial Engineering Eyvanekey University Eyvanekey, Iran

the present study aimed to identify affecting factors the level of investment in the stock market using system dynamics and try to encourage investors to invest in this market. Overall, stock exchange market is a quickmarket in terms of trading stocks and market derivatives. In contrast, the governor’s duty is to clearly explain the rules of the trading and give them some basic trainings including that people should spend their funds on various stocks andshould not pay attention to rumors. For this purpose, variables affecting investment in the stock exchange were first identified using literature and experts’ opinion. Then,the market was model based on affecting variables using systemdynamics. Ultimately, the most effective factors in the stock and exchange market were currency rate, global goldprices and housing prices that had the greatest effect on demand change of investment in the stock market.

stock exchange; Demand; investment; System dynamics