جستجوی مقالات مرتبط با کلیدواژه « رفتار غیرخطی » در نشریات گروه « اقتصاد »

The purpose of this study is to analyze the nonlinear behavior of monetary policy at the Central Bank of the Islamic Republic of Iran in uncertainty condition. To achieve this goal, the nonlinear behavior of the central bank's reaction function to the inflation uncertainty in the form of smooth Transition Regression model (STR) is estimated using seasonal data during the 1997:1-2015:3 periods. The results of this study indicate that the variable behavior and regime change in monetary policy of the central bank of Iran in the various conditions of inflation. By passing the uncertainty of inflation from a threshold level, the behavior of monetary policy has been changed so that the coefficients of the model are consistent with the Taylor rule. Based on the results of the present study, it is suggested to consider the economic uncertainty index in order to determine the optimal monetary policy.

The purpose of this study is to investigate the possibility of non-linear behavior of exchange rate pass-through in the states of boom and recession in Iran. To the best of our knowledge, this issue has not studied for Iran. To this end, using monthly data for the period of 2002:4-2017:3, we estimate a structural threshold vector autoregressive (STVAR) model. Our endogenous variables include exchange rate, import price index, producer price index, consumer price index, industrial production index, and the interest rate. The results show that an increase in exchange rate has positive impacts on import price, producer price and consumer price indices. The impulse-response functions indicate that the reactions of the import price, the producer price and the consumer price to exchange rate shock are higher in the boom than that in the recession. Hence, our finding confirms the non-linear behavior of the exchange rate pass-through in Iran. Moreover, the degree of exchange rate pass-through in Iran is incomplete. The results show that the policymaker should take into consideration the importance of non-linear behavior of exchange rate pass-through when conducting an exchange rate policy in Iran.

In this study, using the smooth transition regression (STR) and quarterly data during the period of 1997:1-2015:3, the nonlinear monetary policy functions of the Central Bank of Iran,regarding the risk of financial markets, be estimated. The results indicated that the risk of financial markets is an important factor in regime switching of monetary policy in Iran. By passing the risk of financial markets from a threshold level, monetary policy is focused on adjusting the output gap so that the coefficient of output gap is consistent with the Taylor rule in the second regime while in the linear part (the first regime) it is in contrast to the expected coefficient. This results indicate the variability of monetary policy behavior in various financial market risk situations. However, the coefficient of inflation gap in both regimes and both scenarios is not statistically significant.