Consumer Price Index (CPI) Fundamentals: Measuring Inflation

Understanding how inflation is measured is critical for making sound economic decisions, indexing wages, and analyzing market trends. The Consumer Price Index (CPI) serves as the primary tool for tracking price changes, yet the mechanics behind its construction are often misunderstood. This text-only course guides you through the foundational principles of price statistics, showing you exactly how CPI data is collected, compiled, and utilized in the real world.\n\nThrough clear written explanations, you will gain the analytical skills to interpret inflation reports and understand the mathematical frameworks that power national economic indicators. We begin with key terminology and basic concepts before moving into practical compilation steps, expenditure weights, and modern data collection challenges.\n\nWhat you'll learn:\n- Understand the foundational definitions of inflation, cost of living, and the primary uses of the CPI.\n- Compare classic index formulas, including Laspeyres, Paasche, and Fisher calculations.\n- Explore modern data collection techniques, such as scanner data and web scraping, alongside traditional survey methods.\n- Address complex measurement challenges, including quality adjustment methods and product substitution.\n- Analyze how CPI data impacts policy decisions, wage indexation, pensions, and financial contracts.\n- Practice calculating price indices through structured, step-by-step written exercises.\n\nThis course is designed for beginner economists, financial analysts, policy students, and anyone interested in economic data. No prior background in advanced statistics is required. Start reading today to master the mechanics of inflation measurement and elevate your economic literacy.