نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی دکترای حسابداری. واحد تهران جنوب. دانشگاه آزاد اسلامی
2 عضو هیات علمی دانشگاه آزاد اسلامی، واحد تهران جنوب، تهران، ایران.
3 عضو هیات علمی دانشگاه آزاد اسلامی، واحد تهران جنوب، تهران، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Financial markets can be evaluated as dynamic nonlinear systems that consider the interactions of factors in the process of immediate information analysis. Investors with different time horizons in the market may use this information differently. Thus, the financial market has a fractal structure in relation to investment time horizons. This research is of applied type and of post-event type; the method research is applicable and run based on past information. The statistical population of the study includes all companies listed in the Iranian capital market during the period 2008-2018. In this study, after calculating the fractal dimension of the experimental group using ARFIMA model and the fractal dimension and simulated Fractal random walks group using RUN test, the difference between these two dimensions in price index, return, future fall risk and systematic risk is investigated. Data analysis was performed in both 5-year and 10-year intervals using EVIEWS and SPSS software and the results indicate that the difference between dimensions fractal and f simulated Fractal random walks of the return index and the risk of future and systematic stock falls in short-term intervals means and is not significant in the long-term
کلیدواژهها [English]