Predictably Irrational: The Hidden Forces That Shape Our Decisions

　　★ 2010最新擴充版本
　　★ 紐約時報、華爾街日報、亞馬遜網路書店暢銷書
　　★ 多位諾貝爾經濟獎得主、暢銷作家共同推薦

　　為什麼免費贈品總讓我們買了不該買的東西？
　　為什麼越貴的藥，吃起來感覺越有效？
　　為什麼我們一再做出愚蠢的決定？
　　精明的商人又是如何利用我們的弱點，大發利市？
　　了解人性，才能做出聰明決定！

　　傳統經濟學假設人是理性的，一般人的觀念也認定如此。但是行為經濟學家艾瑞利以創意十足的實驗證明，人的理性會當機，並告訴你如何趨吉避兇，克制自我不理性的傾向，極大化個人的幸福指數。

　　你自認對人性了解多少呢？

　　不管答案如何，本書都能為你揭開人性的幽微處，讓你有「原來如此！」的頓悟。

　　經濟學的所有假設，都是建立在「人是理性的動物」這句話。而我們一般人在日常生活中，也相信自己可掌控一切，能做出理性的決策。本書作者經過一連串趣味十足的實驗，告訴讀者，我們的理性是有缺陷的，而且我們的不理性不是偶一為之，而是不斷重複發生。聰明的生意人懂得利用人的不理性（如恐懼、貪婪、過度自信等）來賺錢，不明究理的銷費者只能乖乖上當！

　　本書談論主題包括：供需的謬誤（我們就像小鴨子一樣，會認定一開始看到的價格，以為東西就該這麼貴）、零成本的成本（為什麼免費的東西，會讓我們付出更高的代價）、社會規範的效應（為什麼有些是我們明明很樂意去做，但只要有人付我們錢去做同一件事，我們就不那麼快樂）、未雨綢繆的問題（為什麼我們不能斷絕誘惑，控制不了體重，也刷爆了信用卡）……。

作者簡介

丹艾瑞利 Dan Ariely

　　18歲時的一場爆炸意外，讓艾瑞利全身皮膚70%遭灼傷，住在燒燙傷病房達三年之久。身穿彈性衣、頭戴面罩的他，活像個行動不便的冒牌蜘蛛人。在這段漫長、無聊、而又痛苦不堪的歲月裡，他發展出觀察人類行為的興趣，滿身疤痕的他最後終於成為一名行為經濟學家。

　　目前他是麻省理工學院教授，同時在媒體實驗室和史隆管理學院擔任教職。他也是波士頓聯邦儲備銀行（Federal Reserve Bank of Boston）的研究員、杜克大學的訪問學者。艾瑞利是在普林斯頓大學高等研究院（Institute of Advance Study）擔任院士時，寫下這本書。他的文章曾發表在重要的學術期刊，以及許多大眾媒體上，包括《紐約時報》、《波士頓環球報》、《科學人》雜誌（Scientific American），以及《科學》（Science）期刊。他經常往返於北卡羅萊納州的杜罕（Durham）、麻州的劍橋，以及世界各地。

　　★ 本書中譯本《誰說人是理性的！》由天下文化出版

　　How do we think about money?
　　What caused bankers to lose sight of the economy?
　　What caused individuals to take on mortgages that were not within their means?
　　What irrational forces guided our decisions?
　　And how can we recover from an economic crisis?

　　In this revised and expanded edition of the New York Times and Wall Street Journal bestseller Predictably Irrational, Duke University’s behavioral economist Dan Ariely explores the hidden forces that shape our decisions, including some of the causes responsible for the current economic crisis. Bringing a much-needed dose of sophisticated psychological study to the realm of public policy, Ariely offers his own insights into the irrationalities of everyday life, the decisions that led us to the financial meltdown of 2008, and the general ways we get ourselves into trouble.

　　Blending common experiences and clever experiments with groundbreaking analysis, Ariely demonstrates how expectations, emotions, social norms, and other invisible, seemingly illogical forces skew our reasoning abilities. As he explains, our reliance on standard economic theory to design personal, national, and global policies may, in fact, be dangerous. The mistakes that we make as individuals and institutions are not random, and they can aggregate in the market-with devastating results. In light of our current economic crisis, the consequences of these systematic and predictable mistakes have never been clearer.

　　Packed with new studies and thought-provoking responses to readers’ questions and comments, this revised and expanded edition of Predictably Irrational will changethe way we interact with the world-from the small decisions we make in our own lives to the individual and collective choices that shape our economy.

作者簡介

　　Dan Ariely is the James B. Duke Professor of Behavioral Economics at Duke University, with appointments at the Fuqua School of Business, the Center for Cognitive Neuroscience, and the Department of Economics. He is also the founder of the Center for Advanced Hindsight and a visiting professor at MIT’s Media Lab. Over the years he has won numerous scientific awards. Dan wrote this book while he was a fellow at the Institute for Advance Study at Princeton. His work has been featured in leading scholarly journals in psychology, economics, neuroscience, medicine, and business, and in a variety of popular media outlets, including the New York Times, the Wall Street Journal, the Washington Post, the New Yorker, the Boston Globe, Scientific American, and Science. He has appeared on CNN and CNBC, and is a regular commentator on National Public Radio. He currently lives in Durham, North Carolina, with his wife and two children.