Dynamic integration and network structure of the EMU sovereign bond markets
In this paper, we propose a novel concept of correlation-based stable networks to empirically investigate the dynamic integration and network structure of the European Monetary Union (EMU) sovereign bond markets. The obtained results uncover a high degree of market integration between sample markets over the period preceding the recent financial crises, while segmentation is found afterwards. The stable network analysis shows, for its part, the existence of two different network structures before and after the onset of the European debt crisis, where the in-crisis network structure is characterized by two groups of countries with respect to their fiscal performance. In particular, Belgium is the unique vertex connecting the two groups, making it the channel for shock transmission in the event of worsening debt crisis in the EMU.
KeywordsSovereign debt European Economic and Monetary Union Network analysis Monetary policy Tapering
JEL ClassificationD08 E44 G02 G12
- Barrios, S., Iversen, P., Lewandowska, M., Setzer, R. (2009). Determinants of intra-euro area government bond spreads during the financial crisis. European Commission Economic Papers 388.Google Scholar
- Codogno, L., Favero, C., & Missale, A. (2003). Yield spreads on EMU government bonds. Economic Policy, 37, 527–529.Google Scholar
- Conrad, C., Karanasos, M., & Zeng, N. (2008). Multivariate fractionally integrated APARCH modeling of stock market volatility: A multi-country study. Discussion Paper Series, University of Heidelberg.Google Scholar
- Fatas, A. (2010). The economics of achieving fiscal sustainability. Paper presented at the Academic Consultants Meeting - Board of Governors, Federal ReserveGoogle Scholar