Document Type : Research Paper

Authors

Department of Economics, Shiraz University, Shiraz, Iran.

Abstract

The purpose of this paper is to investigate the optimal monetary and fiscal policies with emphasis on a non-inflationary exit from economic stagnation in Iran. In the first stage, Iran’s economy has been modeled in the form of a New Keynesian Dynamic Stochastic General Equilibrium model (NK-DSGE). After modeling and extracting the system of equations, the structural parameters of the model have been estimated by using seasonal data from 1989 to 2016 and also the Bayesian approach. The results show that monetary and fiscal expansionary policies increase production though they are associated with inflation. In the second stage, the optimal monetary and fiscal rules have been extracted from a social loss function, and accordingly the conditions of a non-inflationary exit from stagnation have been investigated. The results of the simulation show that the optimal monetary policy cannot by itself lead to the exit of the economy from stagnation without inflation. However, if this policy is applied along with an optimal fiscal policy, a non-inflationary exit from economic stagnation can be achieved.

Keywords

Article Title [Persian]

سیاست های پولی و مالی بهینه با تاکید بر خروج غیرتورمی از رکود در ایران: رویکرد الگوهای تعادل عمومی پویای تصادفی

Authors [Persian]

  • ایمان روستا
  • ابراهیم هادیان
  • علی حسین صمدی
  • پرویز رستم زاده

بخش اقتصاد، دانشگاه شیراز، شیراز، ایران.

Abstract [Persian]

هدف از این مقاله ، بررسی سیاست های بهینه پولی و مالی با تأکید بر خروج غیر تورمی از رکود اقتصادی در ایران است. در مرحله اول ، اقتصاد ایران در قالب یک مدل تعادل عمومی پویای تصادفی (NK-DSGE) مدل سازی شده است. پس از مدل سازی و استخراج سیستم معادلات، پارامترهای ساختاری مدل با استفاده از داده های فصلی سال 1989 تا 2016 و همچنین رویکرد بیزی محاسبه شده است. نتایج نشان می دهد که سیاست های انبساطی پولی و مالی هر چند که تولید را افزایش می دهد، اما با تورم همراه هستند. در مرحله دوم ، قواعد پولی و مالی بهینه از یک تابع زیان اجتنماعی استخراج شده است و بر این اساس شرایط خروج غیر تورمی از رکود بررسی شده است. نتایج شبیه سازی نشان می دهد که سیاست پولی بهینه نمی تواند به خودی خود منجر به خروج اقتصاد از رکود بدون ایجاد تورم شود. اما اگر این سیاست به همراه سیاست مالی بهینه اعمال شود ، می توان شاهد خروج غیر تورمی از رکود اقتصادی بود.

Keywords [Persian]

  • سیاست پولی و مالی بهینه
  • الگوهای تعادل عمومی پویای تصادفی
  • اقتصاد ایران
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