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jwe-identification

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Use when the identification strategy is the bottleneck for a 《世界经济》 (The Journal of World Economy) manuscript — external shocks (tariffs, trade agreements, exchange-rate reforms, FDI negative-list) as quasi-experiments, plus shift-share / Bartik and gravity designs. Stress-tests exogeneity and inference, including the modern shift-share critiques.

When to use

• External shocks as quasi-experiments
• Shift-share / Bartik exposure designs
• Gravity model designs
• Staggered DID and event-study
• IV with external shocks
• Modern shift-share inference critiques
• Exogeneity stress-testing

When not to use

• Domestic policy byproducts as primary identification
• Simple OLS with control variables only
• OLS-log gravity models dropping zero trade
• Bare TWFE without heterogeneity discussion

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