Delegation Cohesion

delegation-cohesionv1.0Published: 2026-05-01Current version

How unified a country's delegation is across all roll-call votes.

Formula

cohesion = average over votes of (majority_position_count / expressed_positions_count)

Included in the calculation

All roll-call votes where at least one MEP from the country cast an expressed position.

Excluded from the calculation

Absent positions (the MEP did not vote). Votes where no MEP from the country was eligible.

Limitations

A high cohesion does not mean all MEPs share the same ideology — it can reflect a small delegation with similar national priorities, or coordination on specific topics. Cohesion can vary substantially by topic.

Implementation: open source under MIT. The calculation logic lives in the project repository under pipelines/.