Pythagorean Welfare Decomposition
Welfare loss decomposes into orthogonal within-sector and between-sector components.
Impact Score
Score Reasoning
- Importance
- Exact orthogonal decomposition of welfare loss into within/between components via CES Fisher metric. Connects to eigenstructure bridge and damping cancellation.
- Novelty
- New exact decomposition using information geometry inner product on share simplex. The welfare curvature = Fisher information identity is a novel bridge result.
- Quality
- Clear Pythagorean analogy, good Bregman divergence exposition, well-connected to hierarchy and damping cancellation.