Assuming free trade allows the global market to provide calculators to Canada at a price of $30, how many calculators will Canada import, and how will consumer surplus change compared to a no-trade scenario? What is the magnitude of the consumer surplus change? Use the relevant graph you have drawn to determine your answer.
Explanation
When Canada can buy calculators at $30 from the world market, imports increase by 30 units compared to the no-trade situation. This expansion in imports leads to a corresponding increase in consumer surplus, reflecting greater consumer benefit from lower prices and increased availability.