Sakin Dönem ve Durgunluk Dönemi Phillips Eğrisi Tahmini: Panel Analizinden Kanıtlar

Yıl 2019, Cilt: 69 Sayı: 1, 23 - 41, 28.06.2019

Yhlas Sovbetov

https://doi.org/10.26650/ISTJECON2019-0016

Öz

Resesyon dönemlerinde Phillips Eğrisi analizini kapsayan ampirik literatür oldukça azdır. Büyük Durgunluk Phillips Eğrisi’nin geçerliliği ve istikrarı üzerine halen devam etmekte olan bir tartışmayı yeniden alevlendirmiştir. Bu tartışmanın temeli ise, gerçek iktisadi faaliyetlerin keskin bir şekilde düşerken enflasyonda bir düşüşün olmamasının gözlemlenmesidir. Bu makale, sakin ve durgunluk dönemlerini ayırarak 1980’den 2016 yılına kadar 41 ülke üzerinde, beklentilerle genişletilmiş klasik Phillips Eğrisi modeli için ampirik çalışma yürütmektedir. Araştırmanın sonuçlarına dayanarak, bu makale, Phillips Eğrisi dinamiğinin durgunluk dönemlerinde değiştiğini ve ampirik ilişkinin artık geçerli olmadığını ortaya koymaktadır. Bu sonuçlar, gözlemlenemeyen enflasyon düşüşü ve Phillips eğrisinin çöküşü konusundaki süregelen tartışmaları sadece durgunluk dönemleri için desteklemektedir. Sakin iktisadi dönemlerdeki durumda ise, bu ampirik ilişkinin hala geçerli olduğu görülmektedir. Ayrıca, bu makale hem geriye dönük hem de ileriye dönük enflasyon bileşeninin durgunluk dönemlerinde ağırlık ve önem kazandığını da gözlemlemektedir. Bununla birlikte, panel modeli enflasyonun bu iki bileşenini aynı anda tek bir melez çerçeveye dâhil etmediği için bu araştırma hangi bileşenin daha fazla ağırlık ve önem kazandığı konusunda kesin bir sonuç verememektedir.

Anahtar Kelimeler

Phillips eğrisi, panel analizi, işsizlik

Phillips Curve Estimation During Tranquil and Recessionary Periods: Evidence From Panel Analysis

Öz

The empirical literature that covers Phillips Curve analysis during recessionary periods is notably scant. The Great Recession has rekindled a debate on the validity and stability of the Phillips Curve which is still ongoing. The basis for this debate is the observation that real activity dropped sharply without causing a drop in inflation. This paper carries out an empirical analysis for the classical expectation-augmented Phillips curve model across 41 countries from1980-2016 by distinguishing tranquil and recessionary periods separately. Based on the results of the research, the paper finds that dynamics of Phillips Curve changes during recessionary periods and the empirical relationship becomes no longer valid. These findings support the ongoing debate about the missing disinflation and collapse of the Phillips curve, but only during the recessionary periods. In the case of tranquil periods, the empirical relationship still seems to be valid. Moreover, the paper also observes that both backward-looking and forward-looking fractions of inflation gain weight and significance during recessionary periods. However, the paper remains indecisive about which exact fraction gains more weight and significance as the panel model does not incorporate these two fractions of inflation in a single hybrid framework simultaneously.

Anahtar Kelimeler

Phillips curve, panel analysis, unemployment

Kaynakça

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