مطالب مرتبط با کلیدواژه

Beta Coefficient


۱.

Measurement and assessment of systematic risk of selected industries in stock exchange using wavelet approach(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Systematic risk Stat Space Model Beta Coefficient Wavelet

حوزه های تخصصی:
تعداد بازدید : ۳۰۸ تعداد دانلود : ۲۰۵
Investment is an essential factor in a country’s economic development. Meanwhile, return and risk have been effective factors in investment. Today, many financial economists have accepted Risk or Beta as a standard tool for assessing the risk involved in certain actions. This paper has been conducted to find a way to obtain the risk of industries in different timescales included in the short-term and long-term. The statistical population includes a daily index of selected industries (including banks and the food, and car industries) from 2009 to 2014. The present study has measured the risk in different timescales using the wavelet analysis, and consequently, the risk time series have been expressed using a State- Space model. The direct relation between the risk of the selected industries and the market have been eventuated in which, an increase in return of the market would lead to an increase in return of industries and this has also been proven when there is a reduction in return.  
۲.

Investigating the effect of risk on the return of the insurance industry in the Iranian economy using generalized conditional autoregression models, ARIMA-GARCH / TARCH and beta coefficient(مقاله علمی وزارت علوم)

کلیدواژه‌ها: risk insurance industry trend movement of returns Beta Coefficient

حوزه های تخصصی:
تعداد بازدید : ۸۵ تعداد دانلود : ۷۷
Objective: A study of the movement of the insurance industry returns shows that the movement of income returns was less than the movement of the insurance industry. The movements of lower income returns than the movements of paid losses of the insurance industry in the economy are due to various variables, including the management of the insurance industry, part of which is due to risk recognition. Which helps managers in the insurance industry, to the extent of tolerable and intolerable risks in the acceptance or non-acceptance of various swimming risks, and by managing them play an important role in marketing and increasing the demand for insurance and in general, In line with the optimal growth of the insurance industry. Methodology: This study, using generalized conditional autoregression models, ARIMA-GARCH / TARCH and beta coefficient, has evaluated the impact of risk on the return of the insurance industry in the Iranian economy during the period 1350-1398. Results: The results showed that there is a significant relationship between the study of the impact of risk on the return of Basma industry. Also in this research, systematic risk has been investigated using the beta coefficient method. Since the result of the impact of risk on the return on income of the insurance industry is 67%. Because the obtained beta coefficient is less than one and greater than zero. This result indicates that the income of the insurance industry is smaller than the general trend of market movement and risk aversion