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Uncertainty and crude oil returns

Riadh Aloui (), Rangan Gupta () and Stephen Miller ()

No 2015-03, Working papers from University of Connecticut, Department of Economics

Abstract: We use a copula approach to investigate the effect of uncertainty on crude- oil returns. Using copulas to construct multivariate distributions of time- series data permit the calculation of the dependence structure between the series independently of the marginal distributions. Further, we implement the copula estimation using a rolling window method to allow for a time- varying effect of equity and economic policy uncertainty on oil returns. The results show that higher uncertainty, as measured by equity and economic policy uncertainty indices, significantly increase crude-oil returns only during certain periods of time. That is, we find a positive dependence prior to and into the financial crisis and Great Recession, Interestingly, estimation of the copula over the entire sample period leads to a negative dependence between the equity and economic policy indices and the crude-oil return.

Keywords: Uncertainty; oil shocks; copulas (search for similar items in EconPapers)
Pages: 21 pages
Date: 2015-04
New Economics Papers: this item is included in nep-ene
Note: Stephen Miller is the corresponding author
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Journal Article: Uncertainty and crude oil returns (2016) Downloads
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