This article aims is to verify if the Egyptian stock market has information efficiency (market assumptions) by studying presence of time series properties for daily returns between 2005 and 2015. Parametric non-parametric tests are used achieve this purpose, such as ADF/PP unit root- RUNS TEST- Perron - run test. The Jarque– Bera test was measure moderation returns; GARCH model ARCH also. resul...

We propose a projected gradient dynamical system as a model for a bargaining scheme for an asset for which the two interested agents have personal valuations which do not initially coincide. The personal valuations are formed using subjective beliefs concerning the future states of the world and the reservation prices are calculated using expected utility theory. The agents are not rigid concer...

This paper studies the effects of psychological, individual, product strategy, and situational factors on the impulse purchase behavior of customers in all Refah stores located in Tehran. The paper uses Betty and Ferrell Model to set forward and to test 4 hypothesis. All four hypothesis were confirmed. The results indicated that the selected factors had impact on the impulse behavior of the con...