Testing for sign and size symmetry between futures prices and spot prices in the markets of energy commodities: risk diversification and policy implications

Dimitrios Panagiotou and Filio Naka

Studies in Economics and Finance, 2023, vol. 41, issue 1, 192-220

Abstract: Purpose - The purpose of this paper is to investigate for symmetries – in sign and size – between spot and futures prices in the markets of energy commodities. Design/methodology/approach - The aforementioned objective is pursued using daily observations of spot and futures prices for the commodities of crude oil, Brent, heating oil, gasoline and natural gas, along with local nonlinear regression. Findings - Symmetry in sign and size cannot be rejected. This means that, shocks of the same absolute magnitude, but of different sign, are transmitted from futures prices to spot prices with the same intensity. In addition, larger absolute value price shocks in the futures are transmitted to the spot markets with the same intensity compared with smaller ones. The findings of symmetry in the comovements among prices reveal a lack of those commodities on diversifying the investors’ investment risk. Originality/value - To the best of the authors’ knowledge, this is the first study to use local nonlinear regression to test for sign and size symmetry between futures and spot prices in the energy commodities markets.

Keywords: Symmetry; Futures; Energy; Commodities; Sign; C12; G15; Q40 (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eme:sefpps:sef-01-2023-0009

DOI: 10.1108/SEF-01-2023-0009

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