The speed of mean reversion in international stock markets
Master Thesis
Author
Ploumi, Theodora - Maria
Πλουμή, Θεοδώρα - Μαρία
Date
2024-05Advisor
Apergis, NikolaosΑπέργης, Νικόλαος
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Keywords
Μέση αναστροφή ; Χρηματιστηριακές αγορές ; Αποδόσεις ; Ανεπτυγμένες αναδυόμενες χρηματιστηριακές αγορές ; Στασιμότητα ; Δείκτες ; Half-life ; Εκθέτης Hurst ; Mean reversion ; Stock markets ; Returns ; Developed emerging stock markets ; Stationarity ; Indices ; Hurst exponentAbstract
Given the widespread belief that stock index prices are ever-changing, this study offers proof of mean reversion and volatility in important emerging and developed financial markets. It seeks to determine a connection between these variations and the performance of indexes of the world's financial indices. The findings indicate that prices do not systematically change over time in the presence of stability. Conversely, trends and random fluctuations may exist if the Index is not stationary. According to the analysis, only 10 out of the 46 countries in the sample exhibit mean reversion behavior. The interpretation of this behavior is explained through mean reversion and the Hurst exponent.