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Add 6 per-bin CTC rows (amount + nz-count for $10K-$25K, $25K-$50K, $50K-$75K) to match the CD spec. Previously CTC was total-only for states. Results: 14 areas with violations (was 30 with 169 targets), 34 violated targets (was 125). Bystander distortion unchanged. The duplicate CTC shares bug (fixed in PR 2) made per-bin CTC feasible. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Add per-bin CTC targets to state spec (169 → 175 targets), to match planned Congressional District treatment of CTC
This adds by-agi-bin CTC targets to the state spec. While working on the CD pipeline, we discovered a bug in our prior treatment of CTC that had made it hard to target CTC by AGI bin. We fixed that bug and this PR implements the CTC agi-bin targets for states, leading to improved state results. We plan to have the same agi-bin targeting of CTC for the forthcoming CD weights pipeline.
Add 6 per-bin CTC rows (amount + nz-count for $10K-$25K, $25K-$50K, $50K-$75K) to the state target spec, matching the CD spec. CTC was previously total-only for states because a duplicate shares bug made per-bin CTC infeasible. That bug was fixed in PR #471.
Results: violations dropped from 30 areas / 125 targets to 14 areas / 34 targets. All CTC per-bin targets hit within 0.5% tolerance. Previously some had been off by 8% or more. Bystander distortion unchanged (worst moved by 0.2 percentage points).
State fingerprint updated.
Prepared by @donboyd5 and Claude Code