کاربرد روش‌های نیمه پارامتریک و موجک‌ها در بررسی وجود پایداری نرخ تورم ایران
محورهای موضوعی : اقتصاد کار و جمعیت
احمد جعفری صمیمی
1
,
روزبه بالونژاد
2
1 - استاد اقتصاد دانشگا مازندران
2 - دانشجوی دکتری اقتصاد مازندران
کلید واژه: پایداری تورم, ARFIMA, روش‌های نیمه پارامتریک, موجک‌ها, نرخ تورم,
چکیده مقاله :
در این مقاله وجود پایداری در نرخ تورم ایران آزمون می‌شود. برای این منظور، درجه انباشتگی کسری، با استفاده از روش‌های GPH، تعدیل رابینسون، ریزن، وایتل و موجک‌ها و با استفاده از داده‌های بانک مرکزی در مورد شاخص قیمت مصرف کننده سال‌های 1351-1390، تخمین زده شد. نتایج حاصل از تحقیق، بیانگر وجود پایداری در نرخ تورم ایران است. وجود ایستایی و پایداری نرخ تورم در اقتصاد، بیانگر این است که در صورت بروز یک تکانه بر نرخ تورم، اثر آن تا مدتی طولانی باقی می‌ماند. این نتیجه می‌تواند در اتخاذ سیاست‌های مرتبط، مورد توجه تصمیم گیرندگان اقتصادی قرار گیرد.
In this study, the existence of inflation persistent rate is examined in Iran. For this purpose, the degree of fractional integration is estimated by using GPH, Robinson adjustment, Reisen, Whittle, wavelets methods and consumer price index data of Central Bank during 1972-2010. The results indicate a persistent rate of inflation in Iran. The stationary and persistence of inflation rate indicates that, by a shock in inflation rate, its effects remains for a long time. This may be considered by economic decision-makers to select appropriate policies.
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