جستجوی مقالات مرتبط با کلیدواژه « نوسانات ارزی » در نشریات گروه « اقتصاد »

Modeling fluctuations in financial markets is of interest to academic researchers due to its importance for the economy. Despite the empirical work done, modeling volatility in these markets is still a challenge. For this purpose, in the present study, the fluctuations of the financial markets and macroeconomic foundations in Iran were investigated using the mixed data pattern method with different frequency (MIDAS) for different seasonal and annual time frames. The present study analyzes the fluctuations of financial markets and the foundations of macroeconomics in Iran (method of mixed data pattern with different frequency (Midas)) based on the frequency of data for different seasonal and annual periods. In the estimated model, annual data on trade openness, government spending, productivity, inflation and interest rates, and quarterly data on oil price fluctuations, exchange rate fluctuations, money supply and stock price index for the years 1370-1397 have been used. Data related to 1398 were not used in the initial estimation of the relationship in order to test the predictive power of the model outside the estimation range.According to the results of inflation, money supply, exchange rate fluctuations and crude oil price fluctuations have a positive effect on financial market fluctuations and for one percent increase in inflation rate and money supply, financial market fluctuations increase by 92 and 82 percent. In other words, in terms of economic structure and according to the principles of economics, a steady increase in the exchange rate causes economic prosperity in society, but if this increase is temporary, economic prosperity cannot be observed. Also, by comparing the predicted values ​​with the realized values ​​and adding the second, third and fourth chapters to the model, the prediction accuracy of the model goes higher and gets closer to the real values

Productivity is one the important concepts and fundamental necessity for the economic growth and development of all countries of the world. Hence, the study and identification of variables and factors influencing it, is essential especially for appropriate policymaking. The main objective of this study can be served as an investigation of the effect of exchange rate fluctuations on the TFP growth and to achieve this, the third class of endogenous growth theories have been considered in order to design hypotheses and model.To test hypotheses, the panel data methodology is employed for the period of 2000 to 2009 and the specified model is estimated for 7 selected countries of APO members including I.R Of Iran in deferent approaches and in order to determine the presence and type of effects, the Leamer and Hauseman tests are carried out.The results of estimations confirm our two hypotheses and statistically indicate that the significant relation between exchange rate fluctuations and TFP growth cannot be rejected so that the TFP growth will decline if the exchange rate increases and vice versa. Furthermore, the study has several consequences which are concerned with the effects of other variables on the TFP growth, such as the degree of openness to foreign trade and inflationary circumstances. Policy recommendations have been discussed in the terminal sector of paper.

This study seeks to examine the impact of market shocks and economic sanctions on production and value added in the industrial sector, one of the most important sectors of the economy, during period of recession and boom. For this purpose, we examine the effect of oil shocks, currency fluctuations and economic sanctions on the added value of the industrial sector during the recession and boom period, from 1974 to 2016. The results of Markov model estimation imply that the effects of shocks are asymmetric. Positive oil shocks and currency fluctuations have positive effect on value added industrial sector during the boom period and have negative effect during the recession. The results show that if Iran's economy is booming at time t, market shocks and economic sanctions will remain in the same position with a probability of 0.3864%, and if the Iranian economy If t + 1 is in a recession, it is likely to remain at 0.6791% at t + 1. While according to results of estimating the number of years in each diet, the number of prosperity years was lower than the recession period (27 recession periods vs. 14 prosperity periods) and the rate of durability was more during the recession. Another interesting point is that Inventory of capital, inflation of production, consumption of private sector and employment during the recession had a negative relationship with the added value of industry.So, about Iran economy, it seems that establishing an appropriate theoretical relationship between these important variables influenced more by fundamental changes in Political and economic conditions than government economic policies. Thus, although the role of macroeconomic policies, including monetary and fiscal policies, is essential for the growth of value added production but also providing economic security and a secure environment for investment, expansion and diversifying financial markets and institutions, and More productive engagement with the world and major trading partners, moving towards an open economy and the use of foreign investment and developing capital market regulations with the aim of transparency and stability to increase savings and investment is essential and could provide the basis for Increasing production in the manufacturing sector.

Since the collapse of Bretton Woods system and emergence of floating exchange rate regime, the world economy has been exposed to a higher uncertainty associated with greater foreign exchange rate fluctuations and volatility which could disturb world trade flow. Among different sectors of Iranian economy, the non-oil exports of Iran seem to react more to these fluctuations. The impact of exchange rate shocks on Iranian exports as an aggregate have been evaluated by previous studies. As a case study, the main objective of this study has been to investigate the effects of exchange rate shocks on the exports of different sectors of Iranian economy over 2002-2011 using a nonlinear Markov-Switching model. The empirical results suggest that the exchange rate shocks have changed the pattern of overall exports as well as export shares of the various segments of Iranian economy. The main conclusion reveals that the sectorial exports have responded differently to the exchange rate shocks. Moreover, despite positive effects of the exchange rate volatility on the exports of 5 sectors under study by the world financial crisis, the lack of attention to the non-oil exports by the policy makers has led to vulnerability of these sectors to the volatility.