Narmin Davoudi; Hassan Heidari
Abstract
The role of deep hapbit in countercyclical behavior of mark-up and its impact on the transmission of monetary and fiscal shocks have already been studied, but its strength in the presence of Philips curve with price stickiness is not clear. The purpose of this study is to develop a New Keynesian ...
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The role of deep hapbit in countercyclical behavior of mark-up and its impact on the transmission of monetary and fiscal shocks have already been studied, but its strength in the presence of Philips curve with price stickiness is not clear. The purpose of this study is to develop a New Keynesian Philips Curve (NKPC) following Cristiano et al. (2005), to investigate the simultaneous effect of price stickiness and deep habits on monetary and fiscal shock transmission using Markov- switching stochastic dynamic general equilibrium (MS-DSGE) model for the Iranian economy. The results of impulse-response functions show reducing markup for one period due to deep habits and then increasing markup and inflation after a period due to a stronger role of price stickiness. Moreover, although the negative effect of wealth due to government spending is compensated by deep habits consumption and thus makes consumption increase, it is weak in comparison to the strength of expected inflation, and therefore, inflation increases eventually. Overall, the results of this study indicate that deep habits cannot be a dominant factor in the transmission of monetary and fiscal shocks, but according to the obtained impulse response functions, it can be the strong reason to delay increasing inflation. Also, deep habits consumption can be a good reason for increasing consumption and compensating of the negative effect of wealth due to fiscal shock.
Hasan Heidari; Roghayeh Alinazhad; Seied Jamallodin Mohseni Zonozi; Javad Jahangirzadeh
Volume 14, Issue 55 , January 2015, , Pages 157-183
Abstract
This study investigates the potential threshold effects in the relationship between corruption control index and GDP growth for the D-8 countries with the presence of other variables, including education expenditures, government consumption expenditures, agricultural raw materials exports, inflation ...
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This study investigates the potential threshold effects in the relationship between corruption control index and GDP growth for the D-8 countries with the presence of other variables, including education expenditures, government consumption expenditures, agricultural raw materials exports, inflation rate, and index of openness over the period 1996-2011. For this purpose, the paper uses a Panel Smooth Transition Regression (PSTR) model that is an appropriate method for explaining cross-country heterogeneity. Our result rejects the linearity hypothesis, and gives a threshold at corruption control of -0.862. Based on this threshold, we can build a two-regime model. In the first regime, corruption control, education expenditures, agricultural raw materials exports and index of openness variables have a significantly positive impact on GDP growth and government consumption expenditures and inflation rate variables have a significantly negative impact on GDP growth. In the second regime, however, corruption control, education expenditures, agricultural raw materials exports and index of openness variables have a positive impact and government consumption expenditures and inflation rate variables have a negative impact on GDP growth. Though, the impact of corruption control, education expenditures, agricultural raw materials exports and index of openness are increased and the impact of government consumption expenditures and inflation rate are dramatically declined.
Hassan Heydari; HamidReza Faalju; Fatemeh Karami
Volume 13, Issue 49 , July 2013, , Pages 151-176
Abstract
The price index of shares of companies accepted in the Tehran Stock Exchange (TSE) is one of the main variables in evaluating macroeconomic performance of Iranian economy. One of the factors affecting stock price index of developing countries like Iran, that has high degree of volatility, ...
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The price index of shares of companies accepted in the Tehran Stock Exchange (TSE) is one of the main variables in evaluating macroeconomic performance of Iranian economy. One of the factors affecting stock price index of developing countries like Iran, that has high degree of volatility, is exchange rate uncertainty.The main objective of this paper is to investigate the effects of exchange rate uncertainty on price index in the TSE for the period of 1994-2009 using monthly data. In this regard, first, an index of exchange rate uncertainty is calculated using EGARCH models. Then, in order to obtain the relationship between uncertainty in real exchange rate and the stock price index, Bounds test approach is applied to the relationship between level data. The results show that in both long-run and short-run, there is a negative and significant relationship between the exchange rate and stock prices. Moveover, real exchange rate uncertainty has a non-significant negative effect on stock price in short-run. In the long-run, the relationship between real exchange rate uncertainty and stock price is negative and significant. The results of Granger causality test also show that bidirectional causality exists between the real exchange rate and real exchange rate uncertainty in the short-run. While we could not find such an interactive relationship between other variables in the short-run, an indirect causality exists from exchange rate and exchange rate uncertainty to the stock price in the long-run.