Journals / Central Bank Review / 2015 / Cilt: 15 - Sayı: 1

2003 Sonrası ham petrol fiyat artışlarının dalgacık eşevrelilik analizi ile incelenmesi

Assessment of post-2003 crude oil price hike through wavelet coherency analysis

Pages
19–38
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Coherence between speculative activity and oil price is evident only at very high frequencies and no significant co-movement is detected around 2008 period.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Post-2003 hike and the resurgence after the global financial crisis of crude oil prices have drawn a great deal of attention from researchers and policy makers.
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Key Findings & Data:Focusing on that episode, particularly around 2008, we contribute to the empirical literature with an aim to identify the co-movement patterns between oil price and its various determinants.
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Conclusion & Impact:Coherence between speculative activity and oil price is evident only at very high frequencies and no significant co-movement is detected around 2008 period.
🔬Design:Research Article
📍Scope:2003 Verileri
⚙️Variables:Domain Parameters

Abstract

Post-2003 hike and the resurgence after the global financial crisis of crude oil prices have drawn a great deal of attention from researchers and policy makers. Focusing on that episode, particularly around 2008, we contribute to the empirical literature with an aim to identify the co-movement patterns between oil price and its various determinants. For this purpose, we employ the continuous wavelet transformation based tools of coherence analysis. This allows us to track the co-movement in a time-varying fashion at different frequency bands between two variables. We consider the relation of oil prices with both real side factors and speculative financial activity. Our empirical findings are basically in line with the fundamentals approach and only point to ripple effects from the speculative activity. While the real side variables -especially OPEC (Organization of the Petroleum Exporting Countries) spare capacity and demand from emerging markets- become more coherent with the real WTI (West Texas Intermediate) oil price over the post-2003 period and climaxing around 2008, speculative activity fails to present any strong relation with the real WTI price. Coherence between speculative activity and oil price is evident only at very high frequencies and no significant co-movement is detected around 2008 period.

Özet

Petrol fiyatlarının 2003 sonrası dönemdeki yükselişi ve küresel kriz sonrasında hızlı toparlanışı araştırmacıların ve politika yapıcıların dikkatini önemli ölçüde çekmiştir. Bu çalışma, özellikle 2008 yılı olmak üzere bu döneme odaklanıp, petrol fiyatları ile açıklayıcı değişkenleri arasındaki ortak hareketleri açığa çıkararak ampirik literatüre katkıda bulunmayı hedeflemektedir. Bu amaç için sürekli dalgacık dönüşümüne dayanan eşevrelilik analizine başvurulmuştur. Bu yöntem iki değişken arasında farklı frekans bantlarındaki ilişkinin zaman içinde değişen bir şekilde incelenmesine izin vermektedir. Petrol fiyatlarıyla hem reel unsurlar hem de spekülatif finansal faaliyetler arasındaki ilişki dikkate alınmıştır. Bulgular reel unsurların önemli olduğunu savunan görüşü desteklemekte olup, spekülatif faaliyetlerin sadece sınırlı dalgalanmalara neden olduğuna işaret etmektedir. Başta OPEC (Petrol İhraç eden Ülkeler Örgütü) atıl kapasitesi ve gelişmekte olan ülkeler talebi olmak üzere reel değişkenler WTI (West Texas Intermediate) petrol fiyatıyla 2003 sonrası dönemde (2008 yılı civarında daha da belirgin olmak üzere) daha eşevreli hale gelirken spekülatif faaliyet petrol fiyatıyla herhangi bir güçlü ilişki sergilememiştir. Petrol fiyatıyla spekülatif faaliyet arasında eşevreli hareket sadece çok yüksek frekanslarda mevcutken, 2008 yılında belirgin bir ortak hareket tespit edilememiştir.

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Cite This Article

KALAFATCILAR, M. K., ÖZMEN, M. U. (2015). 2003 Sonrası ham petrol fiyat artışlarının dalgacık eşevrelilik analizi ile incelenmesi. Central Bank Review, Cilt: 15 - Sayı: 1, 19–38. https://ajindex.com/articles/146324

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