This chart is just massive!

What happened: A chart-based analysis says France faces rising interest costs if its yield curve, nominal GDP growth, and budget deficit stay at current levels. Key numbers: Interest costs could reach €200 billion annually, almost triple today's level. At 3% nominal GDP growth, interest costs would reach 5% of GDP, more than double their current share. Budget deficit assumed at 5% of GDP. Why it matters: The analysis says policymakers, economists, politicians and investors may eventually turn to the ECB to keep Europe's second-largest economy afloat.

A chart-based analysis says France faces rising interest costs if its yield curve, nominal GDP growth, and budget deficit stay at current levels.

The analysis says policymakers, economists, politicians and investors may eventually turn to the ECB to keep Europe's second-largest economy afloat.