Canada produces lettuce but can also export it. If Canada exports some lettuce:

Question

Quizplus · Accepted Answer

If Canada exports lettuce, it implies that the world price is higher than the domestic price. Canada may or may not have a comparative advantage in lettuce production, but the decision to export is based on the profitability of exporting. The price in Canada may increase or decrease depending on the elasticity of demand for lettuce in the domestic market. The domestic quantity supplied will decrease as some of the lettuce produced in Canada is exported.

Canada Produces Lettuce but Can Also Export It