• List of Articles E12

      • Open Access Article

        1 - The effect of monetary policy on production and inflation in the context of gender discrimination in the Iranian labor market
        Heidar Zobeidi Karim Emami Farhad Ghaffari
            The main purpose of this paper is to explain the effect of monetary policy shock on output and inflation variables in the context of gender discrimination in the Iranian labor market using the new Keynesian stochastic dynamic equilibrium mode More
            The main purpose of this paper is to explain the effect of monetary policy shock on output and inflation variables in the context of gender discrimination in the Iranian labor market using the new Keynesian stochastic dynamic equilibrium model during the period 2008-2009. The results of solving the model showed that the existence of gender discrimination in the Iranian labor market as a destructive phenomenon leads to economic inefficiencies such as reduced wages for men and women, consumption, production and welfare. The results also showed that in the context of gender discrimination, the transmission of the expansionary monetary policy shock to the variables of production and inflation is weaker than the conditions of non-discrimination. Based on the results, awareness of the hidden economic and social angles of this phenomenon and sensitization to planning for maximum elimination through the enactment of laws and the creation of special women's unions and responsible control and monitoring of institutions involved in the real situation of women workers in the Iranian labor market is suggested.       Manuscript profile
      • Open Access Article

        2 - Evaluation of Home Bias in Consumption and Exchange Rate Fluctuations (DSGE Approach)
        Mohammad Akbari mohammad javad sharifzade ali ranjbaraki
        The aim of this study is to evaluate the result of the exsictance and change in consumer home bias on macroeconomic variables (such as consumption and inflation), in the event of exogenous shocks to the economy. In order to do so, seasonal data of the period 1394-1370 a More
        The aim of this study is to evaluate the result of the exsictance and change in consumer home bias on macroeconomic variables (such as consumption and inflation), in the event of exogenous shocks to the economy. In order to do so, seasonal data of the period 1394-1370 and a dynamic stochastic general equilibrium model has been used. After designing the model, parameters of the suggested model are estimated by Bayesian approach. Reviewing the impulse response functions in the event of exogenous shocks (such as oil revenue shock and technological shock) shows that, with home bias exsictance in the model, inflation and consumption volatility will reduced due to the increased volatility of exchange rate. Based on the results it is recommended that, In order to control endogenous variables (including inflation), In the event of exogenous shocks, especially oil revenue shock, the exchange rate should be allowed to fluctuate more. Manuscript profile
      • Open Access Article

        3 - Microextraction and preconcentration of nickel in chocolate samples by SrFe12O19@CTAB magnetic nanoparticles and determination by electrothermal atomic absorption spectroscopy
        vahid mortazavi nik elahe kanoz Alireza Feizbakhsh Amir Abdullah Mehrdad Sharif
        Cocoa beans contain unsaturated fats and a nickel catalyst is used to hydrate the unsaturated fats. Nickel can be present in high concentrations in chocolate. In this research, dispersion solid phase extraction combined with electrothermal atomic absorption method as a More
        Cocoa beans contain unsaturated fats and a nickel catalyst is used to hydrate the unsaturated fats. Nickel can be present in high concentrations in chocolate. In this research, dispersion solid phase extraction combined with electrothermal atomic absorption method as a new method for measuring nickel in chocolate samples. First, strontium hexaferrite magnetic nanosorbents were synthesized. Then its surface was modified with acetyl trimethylammonium bromide (CTAB) surfactant and magnetic nanosorbent SrFe12O19@CTAB was prepared. The characteristics of the synthesized adsorbent were studied by thermogravimetric analysis-differential scanning calorimetric (TGA-DSC), X-ray diffraction spectroscopy (XRD), Fourier-transform infrared spectroscopy (FTIR), vibrating sample magnetometer (VSM), and field emission scanning electron microscopy (FESEM). The optimum amount of effective parameters of extraction (pH=8, adsorbent amount of 50 mg, and type of eluent solvent of 2% (v/v) methanol in nitric acid with a volume of 2 ml) were obtained. Finally, nickel was preconcentrated in real chocolate samples under optimal conditions. It was measured by electrothermal atomic absorption spectrometer. Analytical  parameters such as  linear working range of the calibration curve 1-100 µg l-1, the detection limit (LOD) 0.45 µg kg-1, the recovery values ranged from 97.8 to 100.2%, relative standard deviation of 0.22-0.68% for all samples and preconcentration factor of 50 were found. This method is a simple, fast, low-cost, effective, high sensitivity, and environmentally friendly method for measuring nickel in chocolate samples. Manuscript profile
      • Open Access Article

        4 - Government Spending and the Transmission Channels of Their Effects on Macroeconomic Variables: A DSGE Approach
        انوشیروان تقی پور هما اصفهانیان
        Abstract In the literature, it is emphasized on the role of government spending in business cycle of economic activities, especially in the developing countries where public investment alongside with other government tools uses for economic growth stimulation. However, More
        Abstract In the literature, it is emphasized on the role of government spending in business cycle of economic activities, especially in the developing countries where public investment alongside with other government tools uses for economic growth stimulation. However, the effect of government spending depends on how the spending is financed. Oil in the Iranian economy plays a significant role, so that more than 45% of the budget is directly financed by oil revenue. Therefore, oil plays a major role in macroeconomic variables fluctuations. The aim of this paper is that while explaining the business cycle behavior of the oil income, its relation with some relevant macroeconomic variables including government expenditures, investment, growth, inflation and money is examined as well. To end this, we use a new Keynesian dynamic stochastic general equilibrium (DSGE) model to explain the transmission channels of oil revenues effect on macroeconomic variables through the government budget, public capital stock and monetary base channels. Manuscript profile