Measuring the default risk of sovereign debt from the perspective of network

Hongwei Chuang, Hwai Chung Ho

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Recently, there has been a growing interest in network research, especially in the fields of biology, computer science, and sociology. It is natural to address complex financial issues such as the European sovereign debt crisis from the perspective of network. In this article, we construct a network model according to the debt-credit relations instead of using the conventional methodology to measure the default risk. Based on the model, a risk index is examined using the quarterly report of consolidated foreign claims from the Bank for International Settlements (BIS) and debt/GDP ratios among these reporting countries. The empirical results show that this index can help the regulators and practitioners not only to determine the status of interconnectivity but also to point out the degree of the sovereign debt default risk. Our approach sheds new light on the investigation of quantifying the systemic risk.

Original languageEnglish
Pages (from-to)2235-2239
Number of pages5
JournalPhysica A: Statistical Mechanics and its Applications
Issue number9
Publication statusPublished - 2013


  • Default risk
  • Financial networks
  • Sovereign debt
  • Systemic risk

ASJC Scopus subject areas

  • Statistics and Probability
  • Condensed Matter Physics


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