Book excerpt: A complete introduction to economics and the economy taught in undergraduate economics and masters courses in public policy. CORE's approach to teaching economics is student-centred and motivated by real-world problems and real-world data. The only introductory economics text to equip students to address today's pressing problems by mastering the conceptual and quantitative tools of contemporary economics. THE ECONOMY: is a new approach that integrates recent developments in economics including contract theory, strategic interaction, behavioural economics, and financial instability; challenges students to address inequality, climate change, economic instability, wealth creation and innovation, and other problems; provides a unified treatment of micro- and macroeconomics; motivates all models and concepts by evidence and real-world applications.