Is the Best Generalized Autoregressive Conditional Heteroskedasticity(p,q) Value-at-risk Estimate also the Best in Reality? An Evidence from Australian Interconnected Power Markets

Authors

  • Rangga Handika Abu Dhabi University and Universitas Indonesia
  • Sigit Triandaru Universitas Atmajaya Yogyakarta Indonesia

Abstract

This paper investigates whether the best VaR estimate will also perform the best in empirical performance. The study explores the linkage between statistical world and reality. This paper uses VaR GARCH(p,q) estimates and performs the back testing from both generator (buyer) and retailer (seller) sides, at different confidence levels, and at different out-of-sample periods in the four regions of Australian interconnected power markets. Using VaR approach, we find that the best GARCH(p,q) model tends to generate best empirical performance. Our findings are consistent for both generator (buyer) and retailer (seller) sides, at different confidence levels and at different out-of-sample periods. However, our strong results are only in the daily series. Therefore, our study has two important practical implications in Australian power markets. First, generator and retailer can continue choosing the best GARCH(p,q) model based on statistical criteria. Second, the users of GARCH(p,q) model should be aware that the model tends to be appropriate for estimating the daily series only.Keywords: Power Markets, GARCH, Value-at-Risk,JEL Classifications: G17, G32, Q40, Q47

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Author Biographies

Rangga Handika, Abu Dhabi University and Universitas Indonesia

Assistant Professor

Sigit Triandaru, Universitas Atmajaya Yogyakarta Indonesia

Lecturer

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Published

2016-10-21

How to Cite

Handika, R., & Triandaru, S. (2016). Is the Best Generalized Autoregressive Conditional Heteroskedasticity(p,q) Value-at-risk Estimate also the Best in Reality? An Evidence from Australian Interconnected Power Markets. International Journal of Energy Economics and Policy, 6(4), 814–821. Retrieved from https://econjournals.com./index.php/ijeep/article/view/3006

Issue

Vol. 6 No. 4 (2016)

Section

Articles

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