Breadcrumb Home Economics ES 223 ES 223: Principles of Microeconomics Download as PDF Program Economics Lecture Hours 3 Credits 3 ACTS Equivalent Course Number ECON 2203 A continuation of ES 213 (ECON 2103), including the behavior of decision makers in the economy, taxation, income distribution, and current economic problems. Prerequisites ES 213 (ECON 2103) or departmental approval.