Abstract
Abstract The importance of data in understanding and interpreting as well as aid to make the decision has become a decisive matter. So, concentration should be directed towards the wasted chances of losing data and no – reliance on in decision - making process almost on the individual level or total once. The upgrade of economic performance has resulted of using data and IT in developing the information systems to assess the result of decisions and facts. The progress in economic society, the association of uncertainty conditions and risk in decision making process yield a crucial importance to upgrade the investors' behavior that may increase the activity of economy partially and totally. Planning and policy analysis draw upon the variance in the individual behavior, this may lead to decrease of disbelief regarding the choices of financial markets dealings. Disclosure, broadcasting and scenario analysis are sorts of widespread tools used to treat the uncertain events and expected as well in the next future or more. Finally, the phenomenon of private behavior of the investor has widely tackled in planning and policy analysis in various applicable sectors such as financial market. The concept of Herd Behavior or Imitation or Fashion or Cascade or Follow-the-Leader is demonstrated as a sort of financial markets. This concept is however similar to the behavior and manner of investors inside the market. This sort of behavior may emerge as a result of two principles; first the range of collecting the financial setback such as the change in the general level of financial prices and the change in the prices of interest. Second; it depends on financial contagion, these two concepts seek in the market activity that any market setback may create a crisis in the same market as a result of acquired financial contagion of the investor's behavior
