During a September 4, 2026, appearance on Your Morning Vancouver, McMaster University's Colin Mang discussed the economic fallout of Canada's retaliatory tariffs. The conversation examined how these duties move through supply chains to affect consumer costs.

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How existing inventory and contracts buffer the impact of Canada's counter-tariffs

Retail prices often remain stable even after new trade duties are implemented due to existing supply chains.. As reported by Your Morning Vancouver, price increases at the checkout counter may not be immediate because many businesses are currently operating under contracts signed before the tariffs took effect.

Existing inventory also plays a critical role in delaying the arrival of costlier goods. Until current stocks of imported products are depleted, shoppers may not see the full weight of the new duties reflected in the prices of goods at stores or online.

How importers and American exporters split the cost of new duties

The financial burden of a tariff can be shared between an American exporter and a Canadian importer, according to the report. Rather than passing the entire cost to the consumer, an American exporter might accept a lower profit margin to maintain their market share within Canada.

According to McMaster University assistant professor Colin Mang, the final price increase depends on several market variables, including supply and demand, exchange rates, and the level of competition within a specific product category.. In some cases, Canadian importers may also choose to trim their own margins to keep prices competitive.

The hidden cost of American parts and ingredients for Canadian firms

Canadian manufacturing firms may face increased costs if they rely on American parts, ingredients, or equipment. These retaliatory tariffs can push up the cost of essential inputs, which may eventually be reflected in the price of goods manufactured domestically within Canada.

This secondary effect makes the total economic impact of the trade dispute harder to track. when the cost of production rises due to more expensive American components, the resulting price hike is often embedded in a finished product, obscuring the direct link to the original tariff.

The missing details on food, vehicle, and household goods

While the discussion on Your Morning Vancouver highlighted concerns regarding food, vehicle, and household goods, it did not specify which exact items would see the most significant price increases. The source provides a framework for understanding the mechanics of the tariffs but does not offer a definitive list of targeted products.

Furthermore, the report does not clarify how long these duties are expected to remain in place or how fluctuating exchange rates might mitigate or worsen the impact. Because the segment focused on the academic perspective of trade mechanics rather than specific retail data, the precise scale of the hit to Canadian household budgets remains unverified.