Abstract :Behavioral finance studies have revealed that investors are not rational in their investment decisions where they are prone to buy high out of greed and sold out of fear. This fact doesn’t support fully neoclassical economic theory which is based rational human. This research aims to bridge the gap by examining the impact of emotions on decision making process of investors in terms of demographic factors in Turkey. For this purpose, loss aversion and overconfidence have been dealt with in order to know whether or not there is an impact of these biases on investors decision making. Cross sectional survey, correlation and Chi-Square analyses have been used as a methodology. Our findings indicated that men are more over confident that women when it comes to investment decisions and women are more loss averse in Turkey. Keywords : Overconfidence, Loss Averse, Investment Decision, Behavioral Finance, Survey