The goal of this research is to prioritize effective factors on motivating employees to keep on working and determining the most important effective factors on the employees' motivation. In this paper, to grade effective factors on the employees' motivation for keeping on to work, the Fuzzy AHP method, which is one of the multi-standard decision-making methods was utilized. Field research and library research methods were used for collecting the needed information. Results indicated that among the effective factors on the employees' motivation for job persistence, the health factor is the most important and financial status is the second most important factor. The least importance is given to the significance of the work for that person. In this paper, the effective factors on the employees' motivation for job persistence were rated for the first time. Results of this research are very useful in devising strategies that are related to keeping employees for the human resources' executives. The results of this paper are not applicable to all organizations. Furthermore, in this research, only the factors with positive impacts on employees for job persistence were rated.

The present study investigates the effects of behavioral biases on the efficiency of Tehran stock exchange. In fact, these biases are the mistakes that individuals make while making financial decisions. The methodology of this research is that firms with financial information during 1997 to 2006 that have also been active on the stock exchange have been classified based on two criterions of operating profit/per share and earnings per share, then, the return of these firms was calculated in the first period and compared to their return in the second period. Therefore, it will be clear that the companies’ financial performance trend has been effective on the behavioral biases of investors and consequently on their extreme reactions towards the published information. Therefore, the process of the stock return changes can be predicted in the coming period. As a result, this hypothesis is an evidence of market inefficiency and predictability of financial behavioral theories. On the other hand, this research does not offer sufficient and strong evidences on the effect of consistency in the financial performance process and also the presence of compatible and incompatible signs in companies’ financial performance on the market predictability. Thus, in this case, it is not possible to admit the effect of behavioral biases on the predictability and thus market efficiency. Keywords: behavioral finance, financial performance, behavioral bias, representation, conservatism. JEL Classification: G02, G23, M41