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The increased volume of investments in commodities as financial instruments over the last decades underline the importance of a more thorough framework for stress testing of related portfolios. Our study is the first to show comparatively the marginal impact of the model choice for portfolio components versus the marginal role of tail dependence on the portfolio profit and loss in stress testing exercises. We model the distribution of returns of portfolio components with an asymmetric AR-GARCH model combined with Extreme Value Theory for extreme tails, and employ multivariate copula functions to model the time-varying joint dependence structure. Our study reveals that indeed, for a realistic stress test, a special attention should be given to the tail risk in individual commodity returns as well as to tail correlations. We also draw conclusions about parameter risk persistent in stress testing exercises. Finally yet importantly, in line with Basel IIIb, the study highlights the importance of using forward-looking hybrid and hypothetical scenarios over historical scenarios.\n<\/jats:p>","DOI":"10.1007\/s10287-020-00370-9","type":"journal-article","created":{"date-parts":[[2020,6,17]],"date-time":"2020-06-17T17:05:52Z","timestamp":1592413552000},"page":"203-240","update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Portfolio stress testing applied to commodity futures"],"prefix":"10.1007","volume":"17","author":[{"given":"Florentina","family":"Paraschiv","sequence":"first","affiliation":[]},{"given":"Stine Marie","family":"Reese","sequence":"additional","affiliation":[]},{"given":"Margrethe","family":"Ringkj\u00f8b Skjelstad","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2020,6,17]]},"reference":[{"key":"370_CR1","doi-asserted-by":"publisher","first-page":"93","DOI":"10.1016\/j.jbankfin.2015.07.008","volume":"60","author":"Z Adams","year":"2015","unstructured":"Adams Z, Gl\u00fcck T (2015) Financialization in commodity markets: a passing trend or the new normal? 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