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Systemic Risk in Energy Derivative Markets: A Graph-Theory Analysis

Delphine Lautier and Franck Raynaud

The Energy Journal, 2012, vol. Volume 33, issue Number 3

Abstract: This article uses graph theory to provide novel evidence regarding market integration, a favorable condition for systemic risk to appear in. Relying on daily futures returns covering a 12-year period, we examine cross-and inter-market linkages, both within the commodity complex and between commodities and other financial assets. In such a high dimensional analysis, graph theory enables us to understand the dynamic behavior of our price system. We show that energy markets--as a whole--stand at the heart of this system. We also establish that crude oil is itself at the center of the energy complex. Further, we provide evidence that commodity markets have become more integrated over time.

JEL-codes: F0 (search for similar items in EconPapers)
Date: 2012
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