Volume 9, Issue 32 (7-2018)
jemr 2018, 9(32): 55-90 |
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Mehrara M, Soheyli H.
Estimating the Dynamics of Information Risk at the Tehran Stock Exchange. jemr 2018; 9 (32) :55-90
URL: http://jemr.khu.ac.ir/article-1-1638-en.html
URL: http://jemr.khu.ac.ir/article-1-1638-en.html
1- University of Tehran , mmehrara@ut.ac.ir
2- University of Tehran
2- University of Tehran
Abstract: (5627 Views)
The aim of this study is to investigate the dynamics of information risk at the Tehran Stock Exchange (TSE). We estimated the daily probability of information based trade (PIN) for 22 stocks from 11 different industries of TSE over 4 years. The total average of the daily PIN for all stocks was 27% from 2013 to 2016. The lowest and the highest average of PIN estimates for individual stocks are 20.2% and 39.4%, respectively. In this research, the lowest and the highest daily PIN for individual stocks are estimated as 1.2% and 93.3%, respectively, which indicate that information risk varies substantially along time and there is a substantial need to use dynamic models to study this risk. Generally, it seems that the average and the maximum of information risk at TSE are much higher than in developed markets. Results showed that petrochemical and metal industries benefit from the lowest information risk and the highest is recorded for insurance and cement industries.
Keywords: Information Risk, Private Information, Market Microstructure Models, Tehran Stock Exchange
Type of Study: Applicable |
Subject:
پولی و مالی
Received: 2017/11/17 | Accepted: 2018/07/2 | Published: 2018/09/12
Received: 2017/11/17 | Accepted: 2018/07/2 | Published: 2018/09/12
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