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ALLISON SPIELMAN ADVISORS Cognitive Decision Making: How Your Brain Can Fool You January 29, 2013
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Why Talk About Decision Making? It is what we do It can help you improve your life
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Quiz In middle of page write down the last 3 digits of your phone number. Put a mark above or below if you think Attila-the-Hun died before or after the number you wrote. Now write down the year that you think Attila-the Hun died. Answer 453AD
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Anchoring Richard Thaler Daniel Kahneman & Amos Tversky
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OTHER EXAMPLES Mahatma Gandhi Proportion of African countries in the United Nations
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IMPLICATIONS Negotiations Driving Relationship Fund Raising
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Framing Classic Illustration: Rare Asian Disease
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IMPLICATIONS Lawyers influencing juries Labor negotiations Medical decision
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REPRESENTATIVENESS Tversky & Kahneman – The Linda Problem
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IMPLICATIONS Jury decisions HIV testing
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OTHER HEURISTICS Availability Recency Confirmation Over-confidence Loss Aversion 200 more by some estimates
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POPULAR PRESS “Sway: The Irresistible Pull of Irrational Behavior” by Brafman & Brafman (2008) “Blind Spots: Why Smart People Do Dumb Things” by Van Hecke (2007) “Predictably Irrational: The Hidden Forces That Shape Our Decisions” by Ariely (2008) “Decision Traps: The Ten Barriers to Brilliant Decision Making” by Russo & Schoemaker “Everyday Irrationality: How Pseudo-Scientist, Lunatics, and the Rest of Us Systematically Fail to Think Rationally” by Dawes (2001)
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So…Are we hopelessly irrational decision makers?
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GARY KLEIN “What really happened is that Kahneman and Tversky designed their studies to demonstrate the limits of classical decision theory, not the limits of their subjects”
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Two System Brain
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SYSTEM 1 Automatic Quick Little or no effort No sense of voluntary control Operates below our consciousness (mostly)
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SYSTEM 2 Effortful Complex computations Choice Concentration Consciousness
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Two System Brain
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Synaptic Connections
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DOPAMINE Produces good feelings Expectations Amplified - Cortex
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EXAMPLES Iowa Gambling Task Lt Riley
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IMPLICATIONS Fire Fighters Code Blue Emergencies Driving
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Dopamine
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EXAMPLES Yale Undergrads vs. Lab Rats Apple iPods
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IMPLICATIONS Stock Investing Investment Bubbles
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Interaction Between System 1 and System 2
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Shopping Choices
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Making Shopping Decisions
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APPLICATIONS – COGNITIVE BIASES Control the data Know when you are susceptible
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APPLICATIONS – SYSTEM 1 OR SYSTEM 2 Less Important – System 2 More Important – System 1 Predictable Patterns – System 2 (maybe) Random Patterns – System 1 Puzzles vs. Mysteries
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APPLICATIONS – IMPROVING DECISIONS Embrace Uncertainty Focus on Errors THINK ABOUT THINKING
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OVER-COMING ERRORS Start with realistic anchors – GIGO Build expertise Put Judgments into perspective Represent data in a more usable fashion
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