This video lesson is from the 2003B AP Microeconomics Exam. This video is designed for students to practice the question to enhance their content knowledge on supply and demand topics in Microeconomics, and as a resource for teachers to use in their classroom. There is no audio in this video lesson, just a continuous video of the questions and answers. The overall objective is for students to pause the video, answer the questions, and play the video to see if they get the questions correct. This is where teachers can explain why the answer is correct to their students if needed. I hope you find this video lesson helpful. Part (a) identify equilibrium price, quantity, and area of consumer and producer surplus before any trade occurs. Part (b) label and explain how much the countries will import. Part (c) if a tariff is implemented, what is the new level of domestic consumption, domestic production, consumer surplus, and producer surplus?