[KongchangAI]
Unverified50% confidenceBenchmarkExact time

In the placebo test, 90% of the difference-in-differences estimates fell between -14% and +10%, with an RMSE of 7.6 percentage points.

1
Sources
50%
Confidence
Long-term
Relevance
10/7/2026
First Seen

Sources

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https://kongchang.com/claim/985856
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curl https://kongchang.com/api/v1/knowledge/claims/985856
MCP
get_claim(id=985856)