Exercise solution 1.1 and 1.2 solution were taken from 2 handouts. Student can explain how can you reach its equilibriu . start from drawing graph, explain each points in your graph and try to show how equilibrium for consumer and producers occur. http://fuangfah.econ.cmu.ac.th/teacher/nisit/files/lec.2-basic%20tools2019.pdf http://fuangfah.econ.cmu.ac.th/teacher/nisit/files/lec.3Closed%20Economy%20Equilibrium.pdf 2. Look at offer curve and international term of trade, trade triangle. Then drawing the graph to match with your explanation, step and step. Give a skill of drawing, explaining. See http://fuangfah.econ.cmu.ac.th/teacher/nisit/files/lec.7Inter%20TOT%20and%20HO.pdf 3. It is straightforward. Just try to show your work by using math skill just like I explained on the whiteboard (Auto: Wheat) Before and After trade http://fuangfah.econ.cmu.ac.th/teacher/nisit/files/lec.4constant%20cost%20PPS.pdf 4. Explain/show you work of Ricardian model in number or graph, then explain, step by step, question by question http://fuangfah.econ.cmu.ac.th/teacher/nisit/files/lec.1-2019-summary.pdf http://fuangfah.econ.cmu.ac.th/teacher/nisit/files/2%20Foundations%20of%20M odern%20Trade%20Theory-Comparative%20Advantage.pdf 5. Explain/show you work of Hecksher-Ohlin model in graph, then explain, step by step, question by question -Using graph, number and then show examples for both short-run and long-run. http://fuangfah.econ.cmu.ac.th/teacher/nisit/files/lec.8HO%20and%20beyonds.pdf http://fuangfah.econ.cmu.ac.th/teacher/nisit/files/lec.9%20HO%20Extension2.pdf Strongly suggestion Please show your works in details as many as you can. Don’t answer only the final answer.