Predicting the price index of Tehran Stock Exchange

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DOI:

https://doi.org/10.15628/holos.2017.6062

Palavras-chave:

Long-Term Memory, Random Walk, Variance Ratio Test, Tehran Stock Exchange

Resumo

Today, pursuant to development of science and emerging of modern managerial techniques in economics and financial markets, one can hope to achieve more profits by small capitals but appropriate and timely decision making. Inter alia, stock exchange is one of the most prominent markets in which management of capital and decision-making method are crucially important. The stock exchange index may be assumed as one of the objective manifestations of the macro financial status in a community. Due to fluctuation of prices, investment in stock exchange is followed by high risk. Thus, prediction of behavior of stock exchange is a very difficult task. Hence, it necessitates for adaption of quantitative techniques in financial knowledge. Overall, this first question which should be responded regarding prediction of time series is that whether the studied time series are predictable or not. It is because of this fact if the given time series includes random trend then it can be expected that all of the existing techniques and models concerning prediction of the time series fail to propose appropriate and ideal results. By employing Rescaled Range (R/S) analysis for review on structure of time series and also Variance Ratio Test for testing Random Walk theory in this study, predictability of monthly values of Tehran Exchange Price Index (TEPIX) is examined. The results of R/S analysis and variance ratio test indicate the presence of positive correlation (long-term memory) and non-random monthly values of time series for price index, respectively. 

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Publicado

19/09/2017

Como Citar

Abdollahzade, H., & Safari, A. (2017). Predicting the price index of Tehran Stock Exchange. HOLOS, 4, 371–380. https://doi.org/10.15628/holos.2017.6062

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ARTIGOS