Freakonomics

Steven D. Levitt and Stephen J. Dubner connect apparently unrelated questions through a recurring way of looking: identify incentives, question familiar explanations and search for data that can distinguish alternatives. Schoolteachers, sumo wrestlers, real-estate agents and drug dealers become settings for examining why people’s actions may differ from the stories told about them. The authors present economics as a set of investigative tools rather than a restriction on subject matter.

The later chapters examine the authors’ explanations for falling crime and what evidence about parents and children does or does not show. Lists, small calculations, answer strings and invitations to guess repeatedly turn exposition into an encounter with evidence. The epilogue returns to the uncertainty of individual outcomes. This supplied revised and expanded edition also includes corrections, an account of the collaboration, columns and blog excerpts; its arguments are examined as the authors’ claims, not independently validated contemporary findings.

Unite a changing set of subjects through a recurring investigative method. Begin with an apparent mismatch, expose incentives or information that the ordinary account misses, and make the reader inspect enough of the reasoning to understand the proposed explanation.

Steven D. Levitt & Stephen J. Dubner, Freakonomics; supplied revised and expanded edition, copyright 2005 and 2006; Adobe Digital Edition September 2009, ISBN 9780061792809.

The completed whole-source AI synthesis supplied candidate observations and the broad argument map. This Codex editorial pass checked original source headings, section boundaries, openings and selected argumentative contexts; inspected every retained example; checked the existing pattern dictionary and base examples; and rewrote or rejected nominations. It is a source-checked editorial pass, not a new independently adjudicated whole-book reading.

• No human or independent-model review has been completed.
• The local extraction has not been compared page by page with a publisher edition; graphical layout and completeness are not independently certified.
• The book’s empirical and historical claims are described as claims made by the author, not independently verified findings of this study.
• Proposed effects on readers are editorial interpretations, not measured comprehension, behavior or longevity effects.
• The title page identifies both Steven D. Levitt and Stephen J. Dubner. The CSV’s abbreviated single-author field must not displace the source-supported joint attribution.
• The supplied text is the revised and expanded edition, not the unchanged 2005 original. The preface describes removing former chapter-opening profile excerpts and correcting the Kennedy account; the article Hoodwinked? provides additional discussion at LF 3632–3678.
• The ten map entries cover the explanatory note, revised preface, introduction, six main chapters and epilogue. Bonus material begins at LF 3181, notes at 4322 and acknowledgments at 4573; supplementary columns, blog posts, lists and index entries are not additional main chapters.
• Some tables or typographic emphasis are not faithfully represented by the plain-text extraction. The answer strings and the explanatory prose are present, but the source’s referenced boldface and every graphical table have not been independently checked.
• The source includes contentious causal and social claims. This is analysis of the writing, not independent validation of the crime, parenting, discrimination or other empirical conclusions.

Editorial source check by Codex. No human or independent-model review is claimed. Chapter locations refer to the supplied transcription, not printed page numbers.