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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

Author

Listed:
  • Rangga Handika

    (College of Business Administration, Abu Dhabi University, United Arab Emirates,)

  • Rangga Handika

    (Faculty of Business and Economics Universitas, Indonesia)

  • Sigit Triandaru

    (Universitas Atmajaya Yogyakarta, Indonesia.)

Abstract

This paper investigates whether the best value-at-risk (VaR) estimate will also perform the best in empirical performance. The study explores the linkage between statistical world and reality. This paper uses VaR generalized autoregressive conditional heteroskedasticity (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.

Suggested Citation

  • Rangga Handika & Rangga Handika & Sigit Triandaru, 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, Econjournals, vol. 6(4), pages 814-821.
    • Handle: RePEc:eco:journ2:2016-04-19
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    More about this item

    Keywords

    Power Markets; Generalized Autoregressive Conditional Heteroskedasticity; Value-at-risk;
    All these keywords.

    JEL classification:

    • G17 - Financial Economics - - General Financial Markets - - - Financial Forecasting and Simulation
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill
    • Q40 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - General
    • Q47 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Energy Forecasting

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