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Behavioral bias: First is best

Finance, Psychology, biases

IS THIS the first article you read today? If so, there’s a good chance you’ll enjoy it. The order in which people experience things affects their opinion of them: they tend to like the first option best.

This is the result of a new study by Dana Carney of Berkeley’s Haas School of Business and Mahzarin Banaji of Harvard University. To test their hypothesis, the researchers conducted a series of experiments. In one volunteers were shown pictures of two violent criminals and then asked which one deserved parole. Most felt more merciful towards the first mugshot they were shown (different volunteers saw different villains first).

This bias affects commercial decisions, too. Asked which type of chewing gum they preferred, 68% of respondents at a railway station in Boston picked the first stick they were offered. In another experiment, volunteers more often wanted to buy a car from the first salesperson they met rather than the second.

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