h i g h l i g h t s• The hierarchical structure of sovereign CDS cross correlations is examined. • The importance of geographical and credit rating clustering is confirmed.• Eigenvector centrality agrees with sovereigns' positions in the minimal spanning tree. • The main regional sovereign benchmarks are identified.• The most (and least) financial contagion-prone sovereigns are identified.
a b s t r a c tThis paper employs correlation-into-distance mapping techniques and a minimal spanning tree-based correlation-filtering methodology on 36 sovereign CDS spread time-series in order to identify the sovereigns' informational hierarchy. The resulting hierarchy (i) concurs with sovereigns' eigenvector centrality; (ii) confirms the importance of geographical and credit rating clustering; (iii) identifies Russia, Turkey and Brazil as regional benchmarks; (iv) reveals the idiosyncratic nature of Japan and United States; (v) confirms that a small set of common factors affects the system; (vi) suggests that lower-medium grade rated sovereigns are the most influential, but also the most prone to contagion; and (vii) suggests the existence of a ''Latin American common factor''.