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Last Published June 29, 2026 09:46 AM July 16, 2026 04:29 AM
Planned Number of Observations 48,420 (807 product-vendors × 60 active survey days) 36,315 (807 product-vendors × 45 active survey days)
Power calculation: Minimum Detectable Effect Size for Main Outcomes 0.05 SD for the primary outcome (own-price effect on inventory procurement quantity), based on simulated power calculations with 30 markets, 60 observation days per product-vendor, and 18 treatment days per product-vendor. Power exceeds 0.99 at this MDE across all sensitivity panels. 0.05 SD for the primary outcome (own-price effect on inventory procurement quantity), based on simulated power calculations with 30 markets, 45 observation days per product-vendor, and 18 treatment days per product-vendor. Power exceeds 0.99 at this MDE across all sensitivity panels.
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