This document provides an introduction to economics. It defines economics as a social science focused on the production, distribution, and consumption of goods and services. The document outlines different economic systems including market economies, planned economies, and mixed economies. It also distinguishes between microeconomics, which studies individual economic units, and macroeconomics, which studies whole economies. The document discusses the key questions addressed by economics and the scope of economics, including production, distribution, consumption, and resource allocation. It highlights the importance of studying economics for understanding society, global affairs, and informing voters. The document was presented by two students at Daffodil International University as an introduction to the topic.