The purpose of this study was to investigate irregular behavior in stock prices, investors' expectations and stock returns using the Liponov index and the Kolmogorov index. It also analyzes the related behavior of stock prices, investors' expectations and stock returns during the period of 2012-2018 in Tehran Stock Exchange. The BDS method was used to detect and measure irregular behavior. Copula Garch and Copula T-Gearch were used to study the joint motion among selected variables. The results showed that stock prices and stock returns are irregular according to the Liponov index and the Kolmogorov index. There is a significant evidence of a nonlinear sequence dependent between stock price fluctuations, investor expectations and stock returns. In addition, the high and low dependence sequence and the mobility between the analyzed series were confirmed. Also, fluctuations in stock prices have a huge impact on stock returns and long-term investor expectations of Capoula Garch and Kapila T-GARCH.
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
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