• List of Articles Total return

      • Open Access Article

        1 - stock return prediction models; Estimating the distribution of total market returns and its fluctuations based on the Laplace distribution
        Masoumeh Mohammadi Ledari Iman Dadashi
        AbstractIn most return forecasting models, the return of the total market is used as one of the factors affecting the return of securities. In most of these models, such as the pricing model of capital assets and Black-Scholes, the data distribution is assumed to be nor More
        AbstractIn most return forecasting models, the return of the total market is used as one of the factors affecting the return of securities. In most of these models, such as the pricing model of capital assets and Black-Scholes, the data distribution is assumed to be normal. This is while the distribution of the total return is not necessarily normal and often has a significant difference from the normal distribution. If such a hypothesis is confirmed, the expected return predicted by these models will not be very effective in financial decisions. The purpose of this research is to model the total return of Tehran Stock Exchange based on the Laplace distribution and examine the dependence of the total return fluctuations on the desired distribution. In order to examine the distribution of the total daily return and its weekly fluctuations, data related to a 15-year period between 1387 and 1401 and R statistical software were used. The data analysis showed that the total daily return followed the Laplace distribution and the weekly fluctuations of the total return followed the distribution obtained based on the Laplace distribution. These findings make the use of models with the assumption of normality of total return to predict stock returns in Tehran Stock Exchange a major challenge and are a clear proof of the ineffectiveness of these models. . Manuscript profile
      • Open Access Article

        2 - The effect of macroeconomic variables on total efficiency of the securities market Approach using state - space
        A. Hortamani M. Karimkhani M. Abdoli
        One of the important issues of Economic and financial researchers are the issue of the effect of economic variables on stock market performance. Because investors have different combinations of cash in their portfolios of financial assets, Shares, bank deposits, bonds, More
        One of the important issues of Economic and financial researchers are the issue of the effect of economic variables on stock market performance. Because investors have different combinations of cash in their portfolios of financial assets, Shares, bank deposits, bonds, Gold and currency are Maintain Changes in monetary, exchange rate, inflation and interest rates, Individuals, demand is affected to hold each of assets including demand for the stock. This in turn affects the equities. It is believed that the price of the stock by some fundamental economic variables such a Inflation rate, exchange rate, interest rate and liquidity, are determined. In this study, the effects of three important economic variables, such as inflation, money supply, exchange rate returns on the market index is investigated. Period of time between contract research (2007-2012) and using a state - space have been analyzed. State-space model is a useful tool for dynamic system state variables are unobserved the results of the econometric models used to study space - the show. There is no Significant and positive relationship between inflation and the liquidity and efficiency of the stock exchange. Also there is significant negative correlation between the rate of return on the stock exchange there.  Manuscript profile