ECO 305 Week 4 Assignment 1 – International economics Part 1Due Week 4 and worth 240 pointsWrite a 4-6 page paper in which you:Explain the concept of comparative advantage and the principle theories of why trade occurs.Analyze and discuss the sources of comparative advantage in national economies.Analyze the international movement of productive factors in order to identify businessopportunities and/or threats.Explain the economic effect of tariffs, nontariff barriers, and various forms of trade policiesadopted by national governments.Your assignment must:· Be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides; citations and references must follow APA or school-specific format. Check with your professor for any additional instructions.· Include a cover page containing the tile of the assignment, the studentâs name, the professorâs name, the course title, and the date. The cover page and the reference page are not included in the required assignment page length.