This book puts economics to work on the daily problems faced by investors, traders, speculators, and brokers as they wrestle with increasingly diverse and complex financial markets. Drawing mainly on data direct from the financial behavior of households, corporations, and governments in the USA, the authors show how accessible but rigorous economics can help in making sense of the financial markets (including those in equities, bonds, mutual funds, options, and futures) and of the ways in which these markets are organized. The authors contend that many of the approaches that might seem random or counter‐intuitive at first sight are in fact rational and often predictable responses to events – but they also find that real markets stray from the rational economic path – financial markets make mistakes, and inefficiencies do exist. When they do, unique profit opportunities arise that the authors demonstrate throughout the book. The book differs from many works on financial markets in that it provides a systematic framework for analyzing the impact of events on security prices and trading volumes; explains how the value of a firm's assets and dividend flow will influence the prices of its securities; provides the tools to identify and manage different types of risk; discusses what protection investors can expect from financial market regulators and what happens when a clique tries to squeeze or corner a market; includes a detailed treatment of futures and their role at the core of today's financial markets, and explains why they should be of concern to more and more investors and traders; shows how to use modern corporate strategy tools in security analysis; and shows how to discover inefficiencies in financial markets and profit from them. By bringing together information on the institutional details of financial markets with the concepts and tools of economic theory, the book will be of value to practitioners and students of financial markets alike.