ACR Identity
Arkolakis-Costinot-Rodriguez-Clare gains from trade = Krugman formula at symmetric equilibrium.
Impact Score
Score Reasoning
- Importance
- Well-connected trade application showing ACR formula as structural consequence of CES, but not a core spine result.
- Novelty
- Known result (ACR 2012) restated within CES framework; the CES derivation adds clarity but not a new theorem.
- Quality
- Body ~3456 chars with LaTeX, sections, and cross-links to trade-unification and gravity-model. Well-structured.