How to Measure Interconnectedness

Interconnectedness is considered as a key component to systemic risk supervision. However, there is little guidance on its measurement. Using a unique dataset of bilateral exposures between 21 French financial institutions, we analyse and compare several strategies to measure interconnectedness. We show that these measures tackle interconnectedness from different vantage points: substitutability, integration, core-periphery, systemic importance and systemic fragility. Without promoting one strategy as a panacea to measure interconnectedness, we provide insights on the pros and cons of each measure.