This document provides an overview of microeconomics and macroeconomics presented by B Sharanya for their marketing management class. It defines microeconomics as the study of individual economic units like households and firms, and their behavior in markets. The key topics covered are the theories of demand, production, cost, product pricing, factor markets, distribution, and welfare economics. Macroeconomics is defined as the study of the overall economy, dealing with aggregate quantities like national income, price levels, and output. The main macroeconomic topics covered are the theories of national income, output and employment, the general price level, economic growth, international trade, and money. It also discusses the interdependence of micro and macroeconomics and how they