YANSS 315 – How to avoid the Ladder of Misinference and other ways to apply critical thinking in a world of increasingly sophisticated misinformation machines
Alex Edmans, a professor of finance at London Business School, tells us how to avoid the Ladder of Misinference by examining how narratives, statistics, and articles can mislead, especially when they align with our preconceived notions and confirm what we believe is true, assume is true, and wish were true.
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OFFICIAL DESCRIPTION OF ALEX EDMAN’S BOOK

Our lives are minefields of misinformation. It ripples through our social media feeds, our daily headlines, and the pronouncements of politicians, business leaders, and best-selling authors. Stories, statistics, and studies are everywhere, allowing people to find evidence to support whatever position they want. Many of these sources are flawed, yet by playing on our emotions and preying on our biases, they can gain widespread acceptance, warp our views, and distort our decisions.
In this eye-opening book, Alex Edmans, an economist and professor at London Business School, teaches us how to separate fact from fiction. Using colourful examples – from a wellness guru’s tragic but fabricated backstory, to the blunders that led to the Deepwater Horizon disaster, and the diet that ensnared millions yet hastened its founder’s death – Edmans highlights the biases that cause us to mistake statements for facts, facts for data, data for evidence, and evidence for proof.
Armed with the knowledge of what to guard against, he then provides a practical guide to combat this tide of misinformation. Going beyond simply checking the facts and explaining individual statistics, Edmans explores the relationships between statistics – the science of cause and effect – ultimately training us to think smarter, sharper, and more critically. May Contain Lies is an essential read for anyone who wants to make better sense of the world and take better decisions.

Alex Edmans is Professor of Finance at London Business School and an expert in the use and misuse of data and evidence. He has given the TED talk What to Trust in a Post-Truth World with 2 million views, spoken at the World Economic Forum in Davos, and testified in the UK Parliament.
Alex served as Managing Editor of the Review of Finance, the leading academic finance journal in Europe. He has written for the Wall Street Journal, Financial Times, and Harvard Business Review, and been interviewed by Bloomberg, BBC, CNBC, CNN, ESPN, Fox, ITV, NPR, Reuters, Sky News, and Sky Sports. He was previously a tenured professor at Wharton and an investment banker at Morgan Stanley.
Alex’s first book, Grow the Pie: How Great Companies Deliver Both Purpose and Profit, was featured in the Financial Times Best Business Books of 2020 and has been translated into nine languages. Alex was named Professor of the Year by Poets & Quants in 2021 and won 25 teaching awards at LBS and Wharton. Alex has a BA from Oxford and a PhD from MIT as a Fulbright Scholar, and is a Fellow of the Academy of Social Sciences.
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