Paid promotions ROI low — sellers complain

Ситуация: Авито "Премиум" promotion: дополнительно показывает listing в feed. Sellers report ROI low. Need analyze + improve.

Paid product. Seller pays 500₽ for 30-day premium. Average impressions × 2-3, deals ~ 1.3-1.5×.

Доступные данные

• promotions: listing_id, seller_id, type, started_at, ended_at, cost
• engagement: listing_id, ts, views, contacts
• deals: listing_id, deal_at, amount

Задачи

• ROI decomposition: incremental views, contacts, deals.
• Compare promoted vs non-promoted matched.
• Selection bias: who chose promotion.
• Improvement options.

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