Price bubbles in commodity market – A single time series and panel data analysis

Marcin Potrykus

doi:10.1016/j.qref.2022.12.002

Price bubbles in commodity market – A single time series and panel data analysis

Abstrakt

This paper examines thirty-five commodities, grouped into three market sectors (energy, metals, agriculture & livestock) in terms of the occurrence of price bubbles. The study was based on monthly data for each commodity separately and, in a panel approach, for selected sectors and for all commodities combined. The GSADF test and its version for panel data – panel GSADF – were used to identify bubbles. The beginning and end of the detected price bubbles were also determined. No price bubbles were found for commodities such as Bananas, Cocoa or Orange juice, while tin, tobacco and gold were identified as the commodities most prone to bubbles. Also, a distinction was made between those commodities characterized by short and infrequent periods of price bubbles (five commodities) and those characterized by frequent and usually lasting for at least six months periods of bubbles (eighteen commodities). The panel confirmed that the energy and metals sectors are exposed to periods of bubbles more frequently and for longer than the agriculture & livestock sector. For all identified panels, a clear impact of the financial crisis of 2008 and the European debt crisis on the emergence of commodity bubbles was found.

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Wersja publikacji: Accepted albo Published Version
DOI:: Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.qref.2022.12.002
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Kategoria:

Publikacja w czasopiśmie

Typ:

artykuły w czasopismach

Opublikowano w:

QUARTERLY REVIEW OF ECONOMICS AND FINANCE nr 87, strony 110 - 117,
ISSN: 1062-9769

Język:

angielski

Rok wydania:

2023

Opis bibliograficzny:

Potrykus M.: Price bubbles in commodity market – A single time series and panel data analysis// QUARTERLY REVIEW OF ECONOMICS AND FINANCE -Vol. 87, (2023), s.110-117

DOI: