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Traditional L&E assumes individuals...
Maximise utility
Stable preferences
Respond predictably
Key Terms
People aren’t always purely self-interested; they may care about fairness or others’ wellbeing at a cost to themselves
Bounded self-interest
Individuals often struggle to follow through on long-term goals, especially when facing short-term temptations or pressures
Bounded willpower
Humans make decisions with limited cognitive resources, time, and information, often settling for ‘good enough’ rather than optimal choices
Bounded rationality
People tend to give stronger weight to immediate rewards over future ones, often leading to procrastination or impulsive decisions
Present bias
People often stick with pre-set option when it comes to making choices, choosing familiarity over change even though it may not be in their best self-interest
Default rules matter
A game in which one player proposes how to divide a sum of money, and the other can accept or reject it; rejections (even of small unfair offers) highlight people’s concern for fairness.
Ultimatum game
People judge the likelihood of events based on how easily examples come to mind, which can lead to biased thinking when vivid or recent events dominate memory
Availability heuristic
Aims to steer people's choices in a way that improves their well-being while preserving their freedom to choose. It relies on "nudges"