国际货币基金组织：关税传递和进口再分配（英文版）

We study how U.S. tariff hikes in 2025 have transmitted to import prices. Consistent with recent evidence, we find that duty-exclusive import prices at the variety (country-product) level do not adjust to tariffs, implying full pass-through to duty-inclusive prices at the border. At the product level, however, duty-exclusive aggregate import prices decline significantly with tariff increases. We show that this product-level decline is driven by within-product reallocation toward lower-pri