Goolsbee, Levitt, and Syverson’s text helps answer two critical questions students ask, "Do people and firms really act as theory suggests" and "How can someone use microeconomics in a practical way?" The authors teach in economics departments and business schools and are active empirical microeconomics researchers. Their grounding in different areas of empirical research allows them to present the evidence developed in the last 20 years that has tested and refined the fundamental theories.