جستجوی مقالات مرتبط با کلیدواژه « Rational Expectations » در نشریات گروه « اقتصاد »

The effectiveness of monetary policy is one of the most challenges of monetary authorities. It depends on the interaction between monetary and fiscal policy authorities and private sector behavior. Fiscal authority may or may not respect its intertemporal budget balance. Private agent's behavior in forecasting future values of macroeconomic variables is of the most importance. In standard monetary policy models, it is assumed that the fiscal authority tries to settle its outstanding debt. It is also assumed that, the economic agents forecast the future values of macroeconomic variables with rational expectations. Some studies about fiscal structure of the governments have shown that governments face with sustained budget deficit or accumulating outstanding debt. In this respect, many studies have investigated monetary policy in the context of fiscal authority which is not willing or not able to respect its intertemporal budget balance. At the same time many studies and evidences have shown that expectation formation of economic agents departs from rational expectations and different groups of agents may use different procedures to forecast future values of macroeconomic variables. This paper, taking into account these issues, drives the appropriate monetary rule under heterogeneous expectations and fiscal dominance in Iran. For this purpose, a closed economy dynamic stochastic general equilibrium model with two types of expectations: forward looking rational and backward looking adaptive expectations is used. Simulation results show that a fiscal shock increases production, inflation, investment and decreases consumption. Money growth rate shock increases production, inflation and consumption and decreases investment. Comparing the effects of two shocks shows that the effects of fiscal shock on variables is greater than the effect of monetary shock. It is also shown that increasing the share of non-rational agents increases the volatility of inflation expectations and output gap in response to fiscal and monetary shocks. This shows the importance of anchoring expectations in monetary policy design.

The continuous growth of the price level in Iran indicates the prices trend is rising. Short-term inflation dynamics and cyclical interaction with actual economic variables are central in macroeconomics, especially monetary policy analysis.

 METHODOLOGY

Given the importance of inflation expectations, this study examines how it is formed by considering comparative and rational inflation expectations. Since the relationship between inflation expectations and consumption has an actual application in determining economic policies, this relationship is examined during the period 1367: 1 to 1395: 4 by considering the logarithm of consumption, logarithm of income, and logarithm of inflation as the research variables. All data sets used in this study are first-order, meaning that they only need to be differentiated once to be stationary. Because among the various consumption models, Friedman has played an essential role in introducing expectations into consumption theory and has talked about hot money. His approach has been used in the model. To model invisible variables such as rational inflation expectations, space-state models that allow unobservable variables to be used both in estimating the model and estimating them in the models are used. In this regard, the Kalman-filter algorithm was used, a powerful recursive method for optimal predictions of invisible variables and efficient estimates of the parameters of space-state models based on mathematical hope. The partial adjustment method has been used to model adaptive inflation expectations. For consistent estimation, methods that consider the endogeneity of variables should be used. Also, because the variables of collaborative research are of the same order, if there is no co-integration relationship between them, their differential form should be used. According to Granger's theorem, there will be an error correction if there is a co-integration relationship between the variables. Proving the endogeneity of associations related to expectations in the economic framework and therefore due to the existence, we estimate the error correction model with the GMM method. 

The results show that the effect of rational inflation expectations on long-run consumption in the Iranian economy is positive and significant. Thus, with a one percent increase in expected inflation, consumption will increase about 6 percent, but there is no significant relationship between rational expectations and consumption in the short term. The effect of comparative inflation expectations on consumption is also positive and significant. Thus, a one percent increase in comparative expected inflation will lead to an increase in consumption of 2 percent. Because in the case of comparative expected inflation, a positive relationship between expected inflation and consumption is confirmed, so that the elasticity of consumption to expected inflation is 2%. In other words, a 1% increase in comparative expected inflation will lead to a 2% increase in consumption.  

In the practical aspect of this research, it can be said that since Iran's economy is in a state of stagflation, (1) Managing inflation expectations through an efficient communication framework with economic factors can transform the retrospective pricing system into a futuristic one and reduce the actual costs of deflation. (2) The policymaker should take measures so that the inflation expectations of the society are not intensified because this issue can stimulate inflation by intensifying consumption and increasing its total demand. Then inflation expectations spread in this direction which has happened regularly in recent years. (3) Also, due to the impact of consumption changes on aggregate demand and aggregate demand on corporate investment decisions, the attention of monetary policymakers and the central bank on controlling inflation expectations is needed more than ever due to its direct impact on consumption. In this regard, policymakers should be careful in implementing their policies not to exacerbate inflation expectations. For example, what policies to enforce (or not) and what policies to implement (or not) play a role in forming positive or negative policies destructive inflation expectations. However, in this regard, expert economic advisors should be consulted on any policy. 4- Also, anti-inflation policies that control inflation have a favorable effect on inflation expectations and are therefore recommended.

Today, policymakers and economists use widely rational expectations (RE) in monetary, financial and regulatory policies to improve their country economic performance. In some of the pertinent models to these policies, expectations have been formed by assuming rationality and full information on economics. Indeed, economic agents have no perfect information about some parameters of these models. These unknown parameters can be estimated in the form rational expectations during learning process. In this research, the impact of government policies on the inflation rate has been modeled on the basis of rational expectations under learning process. Data has been gathered from Central Bank of Iran (CBI) and Iran’s economic development plans over the period 1989-2009. Results show that current inflation in the country originates mainly from economy structure and government policies, so share of public inflationary expectations is negligible. In addition, the learning process in Iran will converge to rational expectations, thus government policies for reducing inflation and increasing employment are inefficient. It is recommended that government adopt unanticipated and sudden policies to be effective its plans.

It is well-known fact that any country's economic stability depends on financial issues. Among the various issues involved, the stability of banking sector as core of financial and monetary affairs is of prime importance. The present paper intends to study the factors affecting the stability of this sector of Iran economy in both state owned and private banks on the basis of already existing research on banking in Islamic countries. The study is done based on the assumption that the banking system of Iran has the features of Islamic banking and findings indicated that all banks in Iran had a low level of financial stability within the years 1380 to 1387. It must be noted that the factors affecting financial stability in the case of state owned and private banks are not identical. The macro-variables of net gross domestic product and national currency value have diverse impacts on banking sectors, as the development of the former leads to financial stability and reduction in the case of latter brings financial stability. The balance between the volume of loans and the net assets of the banks is also a variable to be considered, as the increase in loans causes financial instability. It is also found that private banks are prone to be affected by these variables more often when compared to state owned banks.

After the birth of the classical school in the last quarter of the 18th century, the general view of this school which was on the basis of "No government intervention" in economic activities, as well as "Automatic existence of full employment", was the leading school until the publication of the general theory and the birth of the Keynesian school in 1936. From 1930-70 the Keynesian framework under the title of "Neo-classical synthesis" played the dominant role in macroeconomics.But from the mid 1970s due to the lack of micro foundations the school faced with theoretical crises, where eventually ended up to "New-classical macroeconomics."This paper presents the formation of New-classical macroeconomics and its relation to the old version and how they compare and contrast in macroeconomic analysis. Through the end, further expected evolution in the school and the way it might be shaped in the future will be analyzed.