Mark Carney must beware of an all-out trade war

Mark Carney, Canada's prime minister, is facing the looming threat of a full-blown trade war with the United States. Donald Trump, the former United States president, has been hurling a barrage of grievances at Canada, including accusations of drug and migrant invasion, trade deficits, and threats to annex Canada. Trump's rhetoric has escalated to the point where he has contemplated making Canada America's 51st state.

The Canadian government announced retaliatory tariffs worth $20 billion on American goods, effective September 8th. However, the United States' economy is 13 times larger than Canada's, and it is far better equipped to withstand the economic fallout. The conflict was triggered by Canada's refusal to accept Trump's late demands, which included high tariffs on Canadian truck plants, curbing trade deals with other countries, and weakening protections for French language and culture.

Canada had little choice but to walk away from the trade deal. The stabilization of economic relations with the United States is crucial for Canada's efforts to diversify its economy away from its neighbor. In past disputes, Canada has played for time and tried to avoid aggression, but this time, the demands were too extreme to ignore.

The stakes are high for North America, as 67% of Canada's exported goods are sold to the United States. Unlike commodity giants like Brazil, Canada's exports are deeply integrated into American supply chains, making it difficult for Canadian firms to find alternative buyers quickly. The $32 trillion American economy can tolerate losing market share in Canada's $2.5 trillion economy, but the reverse is not true.

As the United States' tariffs have taken effect, the situation could lead to a "dangerous moment for North America."