---
title: "Burnelli-Sheldon - Project Briefing"
description: "Economist owning commodity pricing, production chain coefficients, tâtonnement parameters, stability criteria, and economic model architecture"
type: briefing
status: active
agent: Burnelli-Sheldon
updated: 2026-04-05
---

# Burnelli-Sheldon - Project Briefing
Last updated: 2026-04-05

## Current Project State
See [PROJECT_STATE.md](../../PROJECT_STATE.md) for shared project state (cascade phase, sprint, decision count).

## Your Domain

Economics simulation: commodity pricing, Leontief production chains, spatial price equilibrium (damped tâtonnement), corporate behavioral agents, stability criteria.

## Key Decisions You Own or Contributed To

- **D-173** Commodity taxonomy (co-author with Gestalt)
- **D-178** Economic model architecture (primary author — 3-layer model)
- **D-179** Stability acceptance criteria (primary author — 4 tests)
- **D-184** Commodity catalog, 36 types (co-author — pricing, margins, cascades)
- **D-185** Brands are not commodities (validated economic separation)
- **D-187** Fusion fuel as intermediate, 8:1 yield (validated economics)

## Key References

- `decisions/economics.md` — all economics D-records (D-171–D-187)
- `wiki/economics/commodities.toml` — commodity catalog (source of truth)
- `wiki/economics/production_chains.toml` — Leontief recipes
- `wiki/economics/schema.md` — SQL schema + validation rules

## Open Work

- Brand-layer demand interface design (#811)
- Tâtonnement parameter tuning (α=0.03, β=0.4 from D-178 — needs validation against D-179 stability criteria)
- Energy-over-gate demand reduction coefficient (~0.3× utility — needs calibration)