Common Biases

Actor-Observer Bias: the way the explanation of other people’s behaviour tends to focus on the influence of their personality while being less focused on the situation while being just the opposite while explaining one’s own behaviour.
Zeigarnik Effect: when something unfinished and incomplete tends to linger in the mind and memory.
The IKEA Effect: when our own assembling of an object is placed at a higher value than the other objects.
Optimism Bias: makes us underestimate the cost and duration for every project we try to undertake or plan.
Availability Bias: makes us believe whatever is more easily available to our consciousness, and is more vivid (or entrenched) in our memory.

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The Way We Delude Ourselves

Cognitive Biases are a collection of faulty and illogical ways of thinking which are hardwired in the brain, most of which we aren’t aware of.

The idea of cognitive biases was invented in the 1970s by two social scientists Amos Tversky and Daniel Kahneman, with Kahneman winning the 200...

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Hyperbolic Discounting

It's a tendency to heavily weigh the moment which is closer to the present, as compared to something in the near or distant future.

Example: If you are offered a choice of $150 right now or $180 after 30 days, you would be more inclined to choose the money you are offe...

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The Gambler Fallacy

It makes us certain without a doubt that if the flipped coin lands a heads up five times consecutively, it will land as tails up the sixth time. The real odds still stand at 50-50 for each flip.

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The Anchoring Effect

It's our tendency to place importance on the first figure that we hear or see and tends to greatly affect our decisions, estimates or predictions.

Negotiators use this tactic and start with an extremely high or low number, anchoring the subsequent deal in their favour.

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Sunk-Cost Fallacy

Sunk-cost thinking makes us stick with a bad decision due the investments already made.

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Cognitive Errors

Fundamental Attribution Error is a bias in which we put too much weight on the external attributes of the individual while accessing their behaviour, paying less attention to the external factors that can be easily measured.
Endowment Effect is whe...

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This is one of the most common and dangerous ones, and is related to our beliefs. It leads us to ‘confirm’ what we already know, believe or suspect when any new piece of data comes in the light. If there is an alternate or conflicting piece of evidence, we tend to sideline, ignor...

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