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38 Cards in this Set

  • Front
  • Back
Expected utility theory - rational
-levels of wealth
-risk averse
-correct probability
Prospect theory - behavioral
-changes in wealth
-risk averse in gains, risk seeking in losses
-probability weights
Bernoulli paradox
Wealth has decreasing marginal utility
Allais paradox
-assigning different expected utility to identical problems
-Prospect theory explains with probability weighing function
Is sensitivity (steepness) higher or lower in losses?
higher
Segregation
updated reference point
Integration
no updated reference point
Length of evaluation window
profound effect on utility
What leads to misjudgment of probabilities?
1) overconfidence
2) representativeness
3) belief perseverance
4) regret aviodance
5) availability bias
How does wishful thinking (overconfidence) contribute to misjudgment of probabilities?
-people have unrealistically rosy views of their abilities
-the more important the task, the greater the optimism
How does representativeness contribute to misjudgment of probabilities?
-make inferences from sample too quickly
-hot hand effect
-gambler's fallacy effect (black is due)
How does belief perseverance contribute to misjudgment of probabilities?
-people cling to opinions too tightly & for too long
-confirmation bias: misinterpret evidence to go along with beliefs
Regret avoidance
-trying to turn failures into successes
-hold losing stocks
-double up
-sell winning stocks to avoid future losses
Availability bias
-more weight on known information
-invest locally
Selective perception
-ignore unfavorable information
Contrast effect
Contrasting information attracts more attention
How does order of information matter?
Primacy effect: more influence from first-mentioned
Priming effect: piece of information acts as catalyst
How do people try to avoid regret?
-favor inaction over action
-favor routine over innovative
What does mental accounting entail?
-Narrow framing
-Dynamic aggregation
Narrow framing
-evaluate individual decisions separately from other portions of wealth
Dynamic aggregation
-simple repetitions are unattractive if evaluated one at a time
-more willing to take risks if evaluate performance infrequently
How do people decide to aggregate or separate events?
whichever gives higher utility
Neoclassical asset pricing
decide to save or consume based on highest utility over time, determines portfolio
How do investors determine prices of assets (Consumption CAPM)?
How they contribute to consumption over time (asset that does well in recession trades at premium)
-beta > 0 trades at discount
What are the bads of CCAPM?
-equity premium puzzle
-excess stock return volatility
-predicts high correlation between stock returns & consumption growth
Equity premium puzzle
-requires too high degree of risk aversion
-no premium over 19th century but some in 20th century
Excess volatility puzzle
stock markets are supposed to be less volatile than they are
What does the portfolio allocation perspective say about the equity premium puzzle?
people must be confused about the relative safety of different investments over long horizons
Why might investors be unwilling to bear risks of equities?
myopic loss aversion:
1) loss aversion
2) short evaluation period
Do organizations display myopic loss aversion?
-produced by conflict of interest between pension fund managers and stockholders
-performance evaluation in short window affects managers job but pension has long window
Explanation of excess volatility puzzle
-run-up in price = less risk averse
-drop = more risk averse
What is the problem with investors desiring cash dividends?
-tax inefficient
How might cash dividends be explained rationally?
1) Transaction costs
2) Signaling
3) Market monitoring
4) Agency costs
What are the behavioral explanations of cash dividends?
1) Self-control
2) Mental accounting
3) Regret aversion
How do investors narrow down their stock possibilities?
-small set of attention-grabbing then use preferences
Truth effect
repetition creates a feeling of greater likelihood for something to be true
Does investor attention move share prices?
yes
Does investor attention have a short-term or long-term effect on share prices?
depends on for how long you are able to capture investors' attention