ECO 2013 - Principles of Macroeconomics ECO 2013 - Principles of Macroeconomics (3 Credit Hours) (A.A.) In this course, students will learn the foundations of macroeconomics as the branch of economics concerned with how decision-making, in an environment of scarcity, maps onto the aggregate economy. Students will examine theories and evidence related the following core set of topics: national income determination, money, monetary and fiscal policy, macroeconomic conditions, international trade and the balance of payments, and economic growth and development. View class scheduling information for this course.