Ali Hussein Samadi, Sakine Owjimehr,
Volume 6, Issue 19 (3-2015)
Abstract
Hybrid sticky price model is one of the main models, used to analyze the Persistencyand inertia in inflation. In recent years, Mankiw and Reis (2002),s sticky information model, has also been considered by many economic analysts. So, in present paper, we try to investigate and compare these models by using a Dynamic Stochastic General Equilibrium (DSGE) framework, based on new Keynesian structure. For this purpose, the data 1370:1-1391:4 Iran's economy has been used. The results of the estimated coefficient of inflation inertia indicate, inflation inertia in the model of hybrid price stickiness is more than information stickiness model. Inflation Persistency analysis is based on comparing the autocorrelation function of the original data and simulated data, show that hybrid price stickiness is better thaninformation stickiness model shows inflation persistence.It seems to be a hybrid price stickiness model more consistent with the economy of Iran and economic policy makers can be more confident of the results of this model to use them.
Dr Parviz Rostamzadeh, Elizabeth Soltani Shirazi, Dr Rouhollah Shahnazi, Dr Sakine Owjimehr,
Volume 13, Issue 50 (3-2023)
Abstract
Unconventional monetary policies entered the field of economic discussions after the global financial crisis of 2008 and with the ineffectiveness of conventional monetary policies and have been considered with the aim of combating the reduction of money supply and economic recession. One of the important tools used to implement unconventional monetary policies is credit esing, which obviously does not have a quantitative value, and on the other hand, its prediction and impact on macroeconomic variables is of particular importance. In this research, the effect of the shocks resulting from the implementation of the credit easing policy on Iran's macroeconomic variables is investigated using the QUAL VAR method. In this way, using standard, simulated and quantified methods, the effect of credit easing policy shocks on macroeconomic variables during the years 2001 to 2022 is investigated using various tests. The results show that the impact of the mentioned policy shocks in the first months after the shock has caused a 0.04 percent decrease in the real GDP growth rate, a 0.01 percent increase in the inflation rate, and a 0.03 percent decrease in the employment rate and then in the following months, it will increase real GDP growth rate and employment rate. The mentioned shocks caused a 0.03 percent increase in the monetary base. Therefore, these applied shocks increase growth expectations. In general, the results show the fact that the policy of credit easing has led to an expansion in the assets side of the Central Bank's balance sheet, and by applying the necessary controls, it can be a suitable tool for stabilizing and growing macroeconomic variables in the months after its implementation and dealing with recessionary conditions.
, Sakine Owjimehr, Ali Hussein Samadi, Parviz Rostamzadeh,
Volume 14, Issue 51 (5-2023)
Abstract
In this study, considering the characteristics of complex networks such as dynamics and comprehensiveness in analyzing the behaviors of countries, the global network of foreign investment inflows consisting of 248 countries and trade territories in the years 2009 to 2022 was constructed, and network indicators including degree, closeness centrality, betweenness centrality, PageRank, hub, and authority were calculated. Then, the functional position of the top-performing countries based on the intensity and level of the obtained network indicators was analyzed and compared annually. The results obtained during the study period showed improvement in the degree, betweenness, and PageRank indices, which respectively indicate the number and diversity of communications, the share of information control among countries, and countries' efforts to use the influence of neighbors to reach polar and influential countries. The effect of increasing closeness centrality, which indicates the level of independence, on the main countries in the effective network has improved. Therefore, it is recommended that if countries seek to increase foreign direct investment inflows, they should plan in such a way that their network indicators, resulting from increased interactions and communications, are improved.
