Being a farmer in Canada isn't easy at the best of times, and there's a new big challenge ahead.

This week, China announced a hefty tariff on our canola products, which happens to be this country's largest agricultural export.

Billions of dollars are at stake - so how damaging could this be?

Host of In This Economy?! Mike Eppel speaks with Mike von Massow, a professor in the Department of Food, Agriculture and Resource Economics at the University of Guelph.

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