Background
The following are some notes I took from a Coursera course I took in 2013 titled: “A Beginners Guide to Irrational Behavior” which was given by Professor Daniel Ariely of Duke University. An outline of the course is provided by I only took notes on Week 5 and Week 6
Course Information:
Platform: Coursera
Course Name: A Beginners Guide to Irrational Behavior
Professor: Daniel Ariely
University: Duke University
Course duration: 6 weeks
Reference Notes:
Course content and notes: A Beginners Guide to Irrational Behavior (currently private)
Original notes transferred from: Irrational Behavior - Course Notes (A. Zichettello)
Course taken: March 25 - May 1, 2013
1. Irrationality
1. Visual and Decision Illusions
The brain interprets information by incorporating our expectations into our perceptions
2. Defaults
Choice Architecture
We have the illusion of agency, but out decisions are often influenced by:
environment
defaults
complexity
We take the path of least resistance
We don’t realize how much defaults matter
If you ask someone why they made a decision:
We create stories to justify and explain our actions
Be aware of defaults
The path of least resistance is especially likely when deviating from the default is more complex
Even for highly trained, experienced physicians
Defaults can be more influential as complexity increases
Jam study
Ways to make you less likely to save for retirement:
Require opt-in
Provide lots of complex, difficult choices
Stress the importance of the decision —> Adding stress can reduce interest
Defaults are neither good nor bad, they are just everywhere
3. Do We Know Our Preferences?
4. Choice Sets and Relativity
5. The Long-Lasting Effects of Decisions
What is self herding?
Our tendency to follow the same decisions we have made in the past (future decisions are influenced by previous decisions)
We remember our actions far better than our transient emotional states
Once a particular number is introduced, it becomes the reference point from which prices are judged (the “anchor”)
The first decision becomes an anchor that influence future decisions
We make comparisons within (not across) categories
6. Learning from Our Mistakes
Doubt your intuitions…experiment!
7. Guest: Gavan Fitzsimons
8. Guest: Eli Finkel
Mate preference:
“He is attractive” —> “I ideally want someone who is attractive” —> “I
like this guy”
2. The Psychology of Money
1. Opportunity Cost
2. Relativity
3. The Pain of Paying
4. Mental Accounting
5. Fairness and Reciprocity
6. Loss Aversion and The Endowment Effect
7. Market and Social Norms
8. The Price of FREE
9. Micropayments
10. Guest: Mike Norton
11. Guest: Kathleen Vohs
3. Dishonesty
1. The Simple Model of Rational Crime
2. Shrinking the Expanding Fudge Factor
3. Conflicts of Interest
4. Cheating Over Time and Across Culture
5. Guest: Peter Ubel
6. Guest: Nina Mazar
4. Labor and Motivation
1. Extrinsic versus Intrinsic Motivation
We are motivated to do things that we find meaningful
Doing the same task over and over without a sense of progress can be the ultimate demotivator
2. Meaning
Purpose and meaning are so important that they can be worth a substantial investment of time and money
3. Acknowledgment
Not being acknowledged is nearly the same as disrespecting someones work right in front of them
4. IKEA Effect
More labor leads to more love only when participants were able to complete their creations
The effort we expend on our kids increases our love for them and blinds us from the perspective of others
5. Not-Invented-Here Bias
Investing even a small amount of energy in a solution makes people like it much more
The “Not-Invented-Here” Bias:
Pro: Results in more time and passion devoted to our ideas
Con: Hinders our ability to consider other ideas
6. Cognitive Dissonance
When a person’s behavior contradicts their beliefs, they try to realign their beliefs with their behavior (or vice-a-versa?)
When we work hard for something, we value it more
7. Monetary Stress and Performance
Mechanical tasks vs mental tasks
Increasing incentive only increases performance for mechanical tasks, but actually decreases performance for mental tasks
A state of “flow” drives the highest quality performance
Bonuses can be distracting and may actually decrease performance
8. Social Stress and Performance
When working in front of a group, social concerns are added to the financial motivation
However, anxiety caused by public pressure impedes performance
Higher motivation does not necessarily translate into better performance
9. Bonuses, Labor and Motivation
10. Guest: Lalin Anik
5. Self-Control
1. Difficulty with Self-Control
Present focus bias: the tendency to give more weight to our current environment or state
Climate change has all the factors that maximize human apathy
Far in future
Affects others first
We do not see its progression
We don't see a particular person suffering
Individuals efforts to mitigate are a drop in the bucket
Reward substitution
Driving Prius provides social reward (ego boost) because it looks different and allows people to identify themselves as eco-friendly to the world
Can get us to act like we care about the world when we really care about our image
2. Reward Substitution
Inflate incentives with loss aversion and probability bias
Pre pay the persons and take money away if they don't follow through
Give 10% chance of making $30 instead of guaranteed $3
Ideal lottery
1 big reward
Smaller regular rewards
Regret: the comparison of where we are in life compared to where we could have been
Happiness is experienced (or not experienced) by picking a reality and comparing our lives to it
We pick a reality and compare our lives to it:
If that reality is better than our actual lives, we are miserable
If that reality is worse, we feel good
Regret lottery: everyone gets a ticket but only those who take medication on time get to claim the prize if they win
3. Ulysses Contracts
Contract that the individual makes in order to enforce self-control at a later time (Ulysses had his crew tie him up so that he couldn't be tempted by the sirens)
Bind your current self to prevent your future self from misbehaving
Pigeons and rats choose immediate 1 pellet reward over delayed 10 pellet reward
But even rats and pigeons will use self control strategies to counteract this
Rats and pigeons sometimes will choose the pill that takes away their option to choose the pill that gives them 1 seed now vs the pill that gives them 10 seeds later
4. The Importance of Self-control: The Individual and the Environment
Marshmallow experiment: kids given chance to get 2 marshmallows if they wait or can eat 1 now
Kids who were able to resist did better in college
Also better physical health
Also less criminal activity
Also more financial stability
Is self control a skill or innate ability?
Distracting ourselves from temptation allows us better to resist
Ego depletion: when we continuously exert self-control, our ability to resist temptation weakens
Self control suffers as tempted throughout the day so better to do the things you’re liable to put off in the morning
Human mortality rates attributed to bad decision
1900: <10%
2000: ~45%
This is due to more temptations from technology such as texting and driving
This will get worse as technology finds more powerful ways to tempt us
Denver drug program
Used Ulysses contracts to get heroin addicts to stop
When they weren’t craving, they chose to sign contract, the terms were:
They write a letter to a loved one telling them they are back on heroin but and give letter to experimenter
They would be checked weekly to see if they had used heroin
If they used heroin, the advisor would send the letter to their loved one
After a week, they all wanted out of the contract
Experimenter said they could get out (they weren’t allowed to enforce contract) but only if they held off for 3 weeks
Many of the addicts were able to get through withdrawal
We must find balance between amount of freedom we crave and controls we need to shield us from temptation
5. Guest: Leslie John
6. Guest: Hedy Kober
Self-control is greater indicator of success than IQ
Self-control is more tied to high SAT scores than IQ
Prefrontal cortex is associated with self-control
Self-control is a mental muscle
You have a better a chance at self-control earlier in the day
Over time, using your self-control will cause "ego depletion"
Positive emotion reverses ego depletion (a funny movie actually helps)
You could train it to be better
Motivation to change is key to gaining self-control
If you want to change, you can
"How many psychologists does it take to change a lightbulb? One, but only if the light bulb really wants to change"
7. "Making Sense" on PBS
6. Emotions
1. Two Systems
Two systems are limbic system and cognitive system
Limbic system controls motor functions and emotions, characteristic of animals
Cognitive system is higher level thinking, characteristic of humans
Emotions are transient and more short-lived than we expect
We think positive and negative emotions will last longer than they actually do
Emotions can overtake cognition (they are not just added to cognition)
Ariely experiment on emotions, used sexual arousal
Questions on
Sexual preferences
Willingness to take risks
Willingness to act immorally
“Cold” condition (without being aroused)
“Hot” condition (with being aroused)
Predictions about behavior in “hot” states are largely off the mark
We often do not understand the emotions of ourselves or others unless we are in the emotional state
Crimes of passion are largely misunderstood by the “cold” state jury
2. Intra-empathy Mismatch
Gap between how you think will feel in an emotional state and how you actually will feel in that emotional state
When we experience a particular emotion, we are more empathetic to others with that emotion
Experiment: People that are very thirsty are more apt to donate to a cause to help people get water
This specifically for the thing you desire, that is, this works only for water
If they are hungry, they are more apt to donate to a cause to feed starving people, etc.
3. The Identifiable Victim Effect
The Trolley Problem
Cognition: 4 people > 1
Emotion: 1 person > 4
Mismatched money and needs
Katrina and 9/11 raised over $2.5 billion each (few people affected)
Asian tsunami, tuberculosis raised ~ $1.5 billion each (many people affected)
AIDS, malaria raised less than $1 billion each (many many affected people)
We care more about suffering when it is represented by one individual
“One man’s death is a tragedy, a million deaths is a statistic” - Stalin
“If I look at the masses, I will never act. If I look at the individual, I will” - Mother Teresa
The more we think with our cognition, the less we care but the more we think emotionally, the more we care
Statistical life is worth little
Identifiable life is worth a lot
Statistical life with identifiable life is worth less than identifiable life
Adding statistics to the equation dampens our emotional response
A single, specific victim inspires action, whereas general information about masses of victims (or even small groups) does not
4. Emotional Decision Making
Spammers use emotions to take advantage of people
They message people and establish emotional relationship with them before they ask for money
They use misspellings to identify gullible people
They are in convenient position to learn about human behavior
Decision state versus consumption state
If we make decisions based on our consumption state we are more apt to buy things we will use
Decision environment should match with consumption environment
In the store, tiny differences in stereo sound quality could impact decision to buy stereo more than appearance but at home, without the relative sounds comparison, appearance weighs more heavily
5. Risk Assessment
Our perception of risk is higher when:
The event is salient in memory
We have emotional response
The death toll from car crashes in developed countries is almost 400 times greater than the number of deaths caused by international terrorism
A terrorist attack is intentional and beyond your control, which causes a higher emotional response AND the event are salient in memory
6. Disgust
Disgust is instinctual for purpose to keep us away from harmful things
It is more powerful and more difficult to control than other emotions (more primal)
Some people are more easily disgusted than others
We are also disgusted by things that are contaminated by things that disgust us
A box of sealed tampons that touches a box of unopened cookies will make us less likely to want those cookies
A thoroughly cleaned fly swatter (or unused) that was dipped in bowl of cereal would make us disgusted by the cereal
Disgust is also applied to people and actions
Disgust has been used in history to influence people
German propaganda described the jewish people in a disgusting way to elicit ill feelings about the jews
Disgust and politics
There is a clear correlation between how easily someone is disgusted and what they believe about certain social groups
Conservatives are easily disgusted
Liberals are less easily disgusted
7. What Makes Thing Funny
Actually big influence to our choices
Humor is
Judgment response, cognitive
Emotional response
Behavioral response, tendency to laugh
3 theories in history
Release of sexual tension (Freud)
Superiority (Hobbs)
Incongruity (Conte)
Humor comes from benign violations
Starts with a violation, something not right about it in the world
But needs to be benign, that is harmless, ex: a threatening act by someone you trust
This is best theory of humor
My pen is huge is funny because we think of the violation but the statement is benign
Why is the benign violation theory most supported?
Humor vs. severity and proximity
Distance in time and place are factors of humor
The more severe, the more distance there needs to be for it to be funny (hit by car)
The less severe, distance needs to less to be funny (stub toe)
Mixed emotions
Refer to "cat rubbing statement"
The one being violated must be in approval for it to be funny
Individual differences
Humor is influenced by social norms, culture, beliefs
Some people see something as a violation that other donts
Some people see something as benign that others don't
Refer to "church raffling hummer statement"
What is not funny
"Keith snorted ashes story"
People who saw this as wrong and not okay didnt find it funny
People who saw this is not wrong and okay didnt find it funny either
People whonsaw this as wrong but okay found it funny
Antecedents -> Humor -> Consequence
We like the people that could see or create humor out of the things that are wrong in the world
Humor is a effective at helping people deal with
Pain
Stress
Adversity
Reappraisal
If we are able to reappraise something that we thought was not benign, as now being funny, then we could now think of that thing as benign...so humor could reshape are belief about something
Discuss with Tara?
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Apr 28, 2013: But what if we came up with ways to allow technology to be safe despite it's temptation?
Apr 28, 2013: Like a more effective system to do things while you drive
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Apr 28, 2013: I would have never guessed this...worth thinking about more
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