Read the notes, then try the practice. It adapts as you go.When you're ready.
Session Length
~17 min
Adaptive Checks
15 questions
Transfer Probes
8
Behavioral economics is the study of how psychological, cognitive, and emotional factors influence the economic decisions of individuals and institutions. Unlike classical economics, which assumes that people always make rational decisions that maximize their utility, behavioral economics recognizes that human decision-making is often irrational, influenced by biases, heuristics, and social factors. This field bridges psychology and economics, revealing that context, framing, and emotional states systematically shape choices in predictable ways.
The field gained prominence through the work of Daniel Kahneman and Amos Tversky, who demonstrated systematic patterns in human judgment errors. Their Prospect Theory, which describes how people evaluate gains and losses asymmetrically, fundamentally challenged the rational agent model of traditional economics. Other foundational concepts include anchoring bias, the endowment effect, present bias, and loss aversion, each of which has been validated through extensive experimental research.
Today, behavioral economics has practical applications in public policy (nudge theory), marketing, finance, and organizational design. Governments worldwide use behavioral insights units to improve tax compliance, retirement savings, and public health outcomes. Understanding cognitive biases helps design better systems, products, and policies that account for how people actually behave rather than how they theoretically should, making it one of the most impactful social sciences of the 21st century.
One step at a time.
People feel the pain of losses roughly twice as strongly as the pleasure of equivalent gains. This asymmetry leads to risk-averse behavior when facing potential gains but risk-seeking behavior when facing potential losses.
Example: Investors hold onto losing stocks too long (hoping to avoid realizing a loss) while selling winning stocks too early (to lock in a gain).
The tendency to rely too heavily on the first piece of information encountered (the 'anchor') when making decisions, even when the anchor is arbitrary or irrelevant.
Example: When a store lists a product at $100 'marked down' to $60, the $100 serves as an anchor that makes $60 feel like a deal, regardless of the product's actual value.
A theory developed by Kahneman and Tversky describing how people evaluate potential gains and losses relative to a reference point rather than in absolute terms, and how they weight probabilities nonlinearly.
Example: A person who finds $100 feels less happiness than the unhappiness felt by someone who loses $100, even though the amounts are identical.
The concept that indirect suggestions and positive reinforcement can influence behavior and decision-making more effectively than direct instruction, mandates, or enforcement.
Example: Placing healthy food at eye level in a cafeteria nudges people toward healthier choices without restricting their freedom to choose.
The preference for the current state of affairs, where any change from the baseline is perceived as a loss. People tend to stick with default options even when better alternatives exist.
Example: Most employees stick with the default retirement plan options rather than customizing their investment allocations.
The tendency to judge the likelihood of events based on how easily examples come to mind, leading to overestimation of dramatic or recent events.
Example: After seeing news coverage of plane crashes, people tend to overestimate the risk of flying while underestimating more common risks like car accidents.
The way information is presented (framed) significantly affects decisions and judgments. The same information can lead to different conclusions depending on how it's framed.
Example: Doctors and patients respond differently to a treatment described as having a '90% survival rate' versus a '10% mortality rate,' even though these are identical.
People ascribe more value to things merely because they own them. This leads to a gap between the price people are willing to pay for a good and the price at which they're willing to sell it.
Example: Studies show that people given a coffee mug demand roughly twice as much to sell it as others are willing to pay to buy it.
More terms are available in the glossary.
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