The Domestic Shelf Gets the Tariff Bill

The tariff bill does not stop at the imported appliance. Research published October 6 by economists at the New York Fed and Columbia estimates that, in an illustrative scenario imposing a 10 percent tariff on all imports, consumer goods prices would rise 2.6 percent after twelve months. Roughly a third of that increase would come through goods made in the United States. Domestic production offers no automatic exemption from the arithmetic of imported parts. Liberty Street Economics

The researchers trace the first charge to the border: nearly 90 percent of the 2025 tariffs passed through to U.S. import prices, a finding that holds using data through February 2026. Foreign exporters lowered their prices very little. But the border price is only the beginning of the consumer story. Imported finished goods carry the direct effect; domestic products acquire an indirect one through higher production costs and less pressure from competing imports. The country of assembly cannot tell a shopper which of those bills is inside the box. Liberty Street Economics

Those bills also run on different clocks. In the researchers’ estimates, the direct retail effect is about halfway through after three months and fully through by six. The domestic retail effect more than doubles between six and twelve months. That makes an early shelf-price check a poor final verdict: a relatively quiet domestic aisle can still have costs working their way toward it. The 2.6 percent figure is a modeled scenario, not a uniform increase observed on every receipt. Its useful lesson is the route and the delay, rather than a promise that every product will obey the average. Liberty Street Economics

The largest indirect channel is a production problem. U.S. manufacturers use imported parts and materials; taxing those inputs raises the cost of making a domestic product. The researchers use steel in an American-built car as an example. They find that this input-cost channel contributes more than the second mechanism, in which domestic producers raise prices as more expensive imports ease competitive pressure. The distinction matters: some of the domestic price response reflects a higher bill, and some reflects greater room to charge. Liberty Street Economics

Existing trade policy contains a revealing acknowledgment of the first problem. In its Section 301 announcement concerning forced-labor import prohibitions, USTR identifies product exemptions for raw materials whose taxation could make domestic supply unavailable, products whose taxation could cause economy-wide disruption, and goods that cannot be produced domestically in sufficient quantities or at reasonable prices, or obtained elsewhere. Those criteria recognize that a tariff cannot conjure an adequate substitute merely by making the existing input more expensive. The procurement department still needs something it can buy. USTR

That is a meaningful connection between the policy and the research, without making the exemption list responsible for the estimated price effects. USTR’s criteria acknowledge supply constraints; the economists measure a channel through which imported costs reach domestic prices. Together, they make the domestic-versus-imported shopping distinction less useful than it first appears. For a business assessing exposure, the better questions concern its inputs, available substitutes and competitors’ exposure. A domestic address answers where the factory operates. It does not finish the cost calculation. Liberty Street Economics

A tariff percentage is not a shelf-price percentage, either. The researchers illustrate this with a $100 product: $50 covers the border or factory-gate price, and $50 covers distribution. If the production component rises 10 percent while the distribution margin stays unchanged, the shelf price reaches $105. Their estimated retail response to a 10 percent tariff-induced increase in import and producer prices is 5.6 percent. Transportation, wholesaling and retailing dilute the percentage increase; they do not make the extra dollars disappear. Liberty Street Economics

The annual inflation comparison performs another, quite different dilution. Once an earlier increase falls out of the twelve-month window, its contribution to annual inflation can fade while the price level remains elevated. The researchers’ forecast shows precisely that separation. It assumes tariffs remain at their end-of-September 2026 levels, apart from the announced January 2027 increase on Canadian cars, trucks and auto parts. Under those assumptions, an improving inflation contribution does not mean goods have returned to their previous prices. The calendar can retire an increase from the comparison without issuing the household a refund. Liberty Street Economics

This is a goods-price argument with a defined boundary. The estimates cover non-oil consumer goods, exclude services—about two-thirds of the consumer basket—and hold economy-wide factors such as wages, exchange rates and monetary policy fixed. They cannot settle the whole inflation outlook. They do support a practical reading of the next tariff announcement: follow the imported inputs, allow for the domestic delay, and distinguish slower price growth from restored purchasing power. A smaller annual number may be welcome. Whether the same shopping budget buys what it used to is a separate calculation. Liberty Street Economics