LM 5: The Behavioral Biases of Individuals Flashcards
What is the difference between cognitive errors and emotional biases?
emotional biases: decisions made on feelings or emotions
cognitive errors: due to faulty cognitive reasoning
What are two ways to classify cognitive errors?
belief perseverance biases & information processing errors
What are the 5 different belief perseverance biases? CCRIH
-conservatism
-confirmation
-representativeness
-illusion of control
-hindsight
Describe conservatism bias, confirmation bias, and representativeness biases.
- conservatism bias: Failing to incorporate new information in a timely manner or holding onto prior views
- confirmation bias: tendency to look for & notice what confirms prior beliefs and ignore or undervalue whatever contradicts them.
- representativeness bias: assessing likelihood of event based on past event
Describe illusion of control bias and hindsight bias.
- illusion of control bias: people tend to believe that they can control or influence outcomes when in fact they cannot
- hindsight bias: believing past events as having been predictable and reasonable to expect
What are the 6 types of emotional biases? LOSSER
-loss-aversion bias
-overconfidence bias
-self-control bias
-status quo bias
-endowment bias
-regret-aversion bias
What is loss aversion or disposition effect?
- loss aversion bias refers to strongly prefer avoiding losses to achieving gains (disposition effect)
What is overconfidence bias?
- overconfidence bias: bias in which people demonstrate unwarranted faith in their own abilities
What is self-control bias?
- which people fail to act in pursuit of their long-term goals for their short-term satisfactory goals.
What is status quo bias?
- status quo bias: where people choose to do nothing instead of making a change, even when change is warranted
What is endowment bias?
- endowment bias: people value an asset more when they own it than when they don’t
What is regret aversion bias?
regret-aversion bias: people tend to avoid making decisions out of fear decision will turn out poorly
What are the 4 information processing biases?
-anchoring & adjustment bias
-mental accounting bias
-framing bias
-availability bias
What is anchoring & adjustment bias?
- anchoring & adjustment bias: people rely too much on the initial piece of information (i.e., the “anchor”) in estimating an unknown value
What is mental accounting bias?
mental accounting bias: mentally dividing money into accounts that influence decisions
What is framing bias?
- framing questions: person answer differently based on how question is asked or framed
What is availability bias?
- availability bias: rely on information that comes readily to mind when evaluating situations or making decisions
What are market anomalies?
change in a security’s price that cannot be attributed to new information.
What are 3 types of market anomalies?
- momentum
- bubbles & crashes
- value
What is momentum anomaly?
buying stocks that have momentum or have been doing well
Which 3 biases cause momentum anomaly? AHL
- availability bias
- hindsight bias
- loss aversion bias
What is bubble or crash market anomaly?
rapid escalation or deescalation of market value or price of assets
What are 3 biases that cause bubbles & crashes in market anomaly? OCS
-overconfidence bias
-confirmation bias
-self-attribution bias
What is value anomaly in market anomaly?
higher average returns on value as opposed to growth stocks
What is the behavioral explanation for value market anomaly?
mispricing rather than compensation for increased risk
What is the halo effect?
evaluation of one characteristics making assumptions for other characteristics that are unrelated
What is home bias?
portfolios exhibit strong bias in favor of domestic securities instead of global securities
What is the difference between belief perseverance biases & processing errors?
- belief perseverance: cling to previously held beliefs and refuse to accept new information
- processing errors: information processed and used illogically or irrationally in financial decision making
What is cognitive dissonance?
mental discomfort that arises when new information conflicts with initial beliefs
What are the 2 types of representativeness bias?
- base rate neglect
- sample size neglect
Whats the difference between base rate neglect vs sample size neglect?
base rate neglect: neglect existing knowledge when evaluating new information.
Sample-size neglect: scenario where a small sample is incorrectly assumed to be representative of the population
What is narrow framing?
focusing too much on the details and losing sight of the big picture
What is self-attribution bias?
where people consistently attribute success to their own skill and failure to external factors.
What are 3 factors that result in misclassification of anomalies?
- Choice of asset pricing model
- Statistical issues
- Temporary disequilibria (January effect)
What is the recency effect?
where people assign more weight and credibility to recent events.
What are 2 behavioral causes of value anomalies?
- halo effect
- home bias