DIŞSAL HAM PETROL FİYATI ŞOKLARININ BÜYÜME VE ENFLASYON ÜZERİNE ETKİSİ: TÜRKİYE ÖRNEĞİ

Bu çalıĢma, petrol fiyatları üzerinde etkili olan farklı dıĢsal Ģokların Türkiye’ye ait büyüme ve enflasyon değiĢkenleri üzerine etkilerini Killian (2009)’ın yaklaĢımını kullanarak analiz etmektedir. ÇalıĢmada, petrol fiyatlarını etkileyen üç farklı yapısal Ģok üzerinde durulmuĢtur: ham petrol arz Ģoku, küresel toplam talep Ģoku ve son olarak da petrol-spesifik talep Ģoku. Ġlgili yapısal Ģoklar Cholesky ayrıĢtırması yoluyla elde edilmiĢ olup, hesaplanan uzun dönem elastikiyet katsayıları ile küresel petrol fiyatlarındaki değiĢmelere söz konusu arz ve talep Ģoklarının nasıl katkıda bulunduğu analiz edilmiĢtir. Buna göre, petrol arz Ģoku petrol fiyatlarını düĢürürken, küresel talep Ģoku ve petrol-spesifik talep Ģoku petrol fiyatlarını yükseltmektedir. ġokların kesin dıĢsallığı varsayımı altında, bu Ģokların ulusal büyüme ve enflasyon rakamları üzerindeki etkileri ise tek denklemli dinamik regresyonlar aracılığıyla analiz edilmiĢtir. Elde edilen sonuçlara göre, beklenmedik petrol arzı artıĢları ülkenin üretim düzeyini olumlu etkilemektedir. Beklenmedik küresel talep artıĢları ile birlikte petrol-spesifik pozitif talep Ģokları ise iç fiyatları istatistiki olarak anlamlı bir Ģekilde yükseltmektedir

THE IMPACTS OF EXOGENOUS CRUDE OIL PRICE SHOCKS ONGROWTH AND INFLATION: EVIDENCE FROM TURKEY

This study analyzes the impacts of various exogenous shocks that affect oil prices on growth rate and inflation in Turkey based on Killian’s (2009) approach. The study focuses on three different structural shocks that drive oil prices: crude oil supply shock, global aggregate demand shock, and oil-specific demand shock. The relevant structural shocks were obtained through the Cholesky decomposition, and the contributions of the supply and demand shocks on global oil prices were analyzed by estimated long-term elasticity coefficients. Accordingly, while oil supply shock decreases oil prices, global demand shock and oil-specific demand shock raise oil prices. Under the assumption of strict exogeneity, the impacts of exogenous shocks on domestic growth and inflation were analyzed by dynamic single equation linear regressions. The results indicate that an unexpected increase in global demand and oil-specific positive demand shocks significantly raises domestic prices while an unexpected increase in oil supply produces positive impact on output level.

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