A spatial analysis of contagion in sovereign credit default swaps
Pelin Akçagün-Narin et al.
Abstract
In this article, we propose a spatio-temporal model to investigate the dynamics of contagion in the credit event risks of sovereigns. More specifically, we examine how changes in the credit default swap (CDS) spreads of a sovereign are influenced by the CDS spreads of other sovereigns over time. Our model incorporates spatial, temporal, and spatio-temporal lags of CDS spreads while accounting for unobserved heterogeneity across sovereigns and time periods. We consider several candidates for the underlying contagion network matrix using cross-border domestic bank exposures, geographical distances between sovereigns, and pairwise correlations of CDS spreads. We propose an efficient Bayesian algorithm for estimation and a simple method to address nested and non-nested model selection problems. Using a quarterly dataset of fourteen sovereigns from 2009 to 2022, we find evidence of contagion in CDS spreads which was relatively stronger during the period 2009–2012.
Evidence weight
Balanced mode · F 0.40 / M 0.15 / V 0.05 / R 0.40
| F · citation impact | 0.50 × 0.4 = 0.20 |
| M · momentum | 0.50 × 0.15 = 0.07 |
| V · venue signal | 0.50 × 0.05 = 0.03 |
| R · text relevance † | 0.50 × 0.4 = 0.20 |
† Text relevance is estimated at 0.50 on the detail page — for your query’s actual relevance score, open this paper from a search result.