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Residual shape risk on natural gas market with mixed jump diffusion price dynamics

Karel Janda () and Jakub Kourilek

Energy Economics, 2020, vol. 85, issue C

Abstract: This paper introduces residual shape risk as a new subclass of energy commodity risk. Residual shape risk is caused by insufficient liquidity of energy forward market when retail energy supplier has to hedge his short sales by a non-flexible standard baseload product available on wholesale market. Because of this inflexibility, energy supplier is left with residual unhedged position which has to be closed at spot market. The residual shape risk is defined as the difference between spot and forward prices weighted by residual unhedged position whose size depends on the shape of customers’ portfolio of a given retail energy supplier. We evaluated residual shape risk over the years 2014–2018 with a real portfolio of a leading natural gas retail supplier in the Czech Republic. The size of residual shape risk in our example corresponds approximately to 1 percent of the profit margin of the natural gas retail supplier.

Keywords: Natural gas markets; Spot prices; Forward prices; Residual shape risk (search for similar items in EconPapers)
JEL-codes: C51 C58 Q41 Q47 (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:eee:eneeco:v:85:y:2020:i:c:s0140988319302464

DOI: 10.1016/j.eneco.2019.07.025

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