دراسة تحليلية لكفاءة سوق العراق للأوراق المالية

الملخص EN

The concept of efficient stock market refers to the speed of prices in response to the information provided to the market , it is moving upward with good information and tend to decrease with the information is a good rule of supply and demand mechanism , and that this information reaches the market at random and independent of each other in time , so it will not be any of the dealers in the market able to anticipate the results of its movement and thus achieve profits unusual at the expense of others , for this would be the efficient market place to attract funds seeking investment capital that will flow to increase its effectiveness .

So study aimed to determine the efficiency of the Iraq Stock Exchange , witch have been identified as the weak level , it has been used a test unit root based on Dickey _ Fuller test and test Phelps _ Byron addition to test contrast ratio , to test the efficiency of the Iraq Stock Exchange.