an investigation on the presence of mean reversion in stock prices in tehran stock exchange

The effect of government size on yields and stock prices in the Tehran Stock Exchange

Without government intervention, grow and achieve high levels of economic wealth is not achievable. Communities where a relatively high level of economic activity has been monopolized by the state, due to bureaucracy, rent-seeking, corruption and inefficiency, have failed to achieve significant economic growth. Easier to say that the involvement of zero or one hundred percent of the state's eco...

Fractional Integration and Mean Reversion in Stock Prices

The Efficient Market Hypothesis (EMH) is frequently tested by measuring the degree of mean reversion in stock prices, since highly predictable changes might indicate that investors are not fully rational. Existing studies often rely on statistical tests which impose too restrictive assumptions on the time series behaviour of the series of interest, and have very low power. This paper uses a tes...

are stock prices predictable in the tehran stock exchange

the difficulty of determining intrinsic value of stock prices have led many people to use technical analysis in order to forecast stock prices in the future. to predict the stock price we need to determine the generating process of stock prices. in recent years many time - series methods have been used for forecasting purposes. one of these methods is the rescaled range analysis (ris). in the a...

An Investigation of Financing Costs Factors on the Auditor's Qualified Report in the Companies Listed in Tehran Stock Exchange

The purpose of this study was to an investigation of financing costs factors on the auditor's qualified report in companies listed in Tehran stock exchange. The criteria considered in this study were the audit firm size, auditor's specialization in the partner level, auditor's selection tenure and audit fees. For this purpose, five hypotheses were developed and data related to 85 companies of T...

conditional copula-garch methods for value at risk of portfolio: the case of tehran stock exchange market

ارزش در معرض ریسک یکی از مهمترین معیارهای اندازه گیری ریسک در بنگاه های اقتصادی می باشد. برآورد دقیق ارزش در معرض ریسک موضوع بسیارمهمی می باشد و انحراف از آن می تواند موجب ورشکستگی و یا عدم تخصیص بهینه منابع یک بنگاه گردد. هدف اصلی این مطالعه بررسی کارایی روش copula-garch شرطی در برآورد ارزش در معرض ریسک پرتفویی متشکل از دو سهام می باشد و ارزش در معرض ریسک بدست آمده با روشهای سنتی برآورد ارزش د...

Bubbles In Tehran Stock Exchange