Framing interpersonal interactions (Week 12) Flashcards
What is the Discounted Utility Theory?
- The interest rate, r, determines everyone’s utility at diff. time pts. Indiv. diffs. in intertemporal choices should be minimal
- r > 0, positive discount rate
- r = a constant across diff. time points
What is the Behavioural Perspective?
- Some ppl have extremely high discount rates
- Negative discount rate
- Impatience; Dynamic inconsistencies
What is a high/low positive discount rate?
A stronger/lower desire to ACQUIRE IMMEDIATE GAINS and avoid IMMEDIATE LOSSES
What is a high/low negative discount rate?
A stronger/lower desire to DELAY GAINS and to ACCEPT IMMEDIATE LOSSES
What is the first violation by the descriptive perspective of intertemporal choice?
A violation of positive discount rate
Under a negative discount rate,
- the VALUE of the current item(s) become larger in the future
- ppl have a tendency to DELAY consumption
What are some prescriptions for intertemporal choice?
Apply DU to financial decisions to maximise your benefits
Using DU rules to EVALUATE the outcomes of different options
Rather than follow your feelings to make financial investments
What is the second violation by the descriptive perspective of intertemporal choice?
A violation of Preference Stability Assumption
r=a constant across diff. time points
What are the reasons for the violation of Preference Stability Assumption?
- Impatience: In many situations, discount rate INCREASES as event approaches (Stronger desire to get smth right away and avoid immediate losses)
- Dynamic inconsistencies: Preference b/w 2 consumption streams changes over time
What are the perspectives of descriptive violations of intertemporal choice?
Discounted Utility Theory: Our utility was determined solely by our consumption experiences
Behavioural Perspective: We don’t merely consume experiences; we consume the past and future
What are the descriptive violations of intertemporal choice?
MEMORY: We often derive utility/disutility from past exp
ANTICIPATION: We savour future positive exps and dread future negative consequences
What are some interactions between decisions?
1) Transaction decoupling
2) Joint vs separate evaluation
What is transaction decoupling?
Ppl often prefer to DECOUPLE purchase & consumption to reduce the “pain of paying”
What is joint vs. separate evaluation?
Some attributes are easier to evaluate & therefore receive more weight when evaluated JOINTLY
Rather than when evaluated SEPARATELY
C’s evaluation of price of items can change when presented together/separately.
Normative theory: Shouldn’t matter!
What are allocations?
Choosing multiple items from a menu of options
What is the normative account for allocation decisions?
- Full info, 2. Stable prefs., 3. No interaction effect b/w items
Choose the portfolio of items that maximise aggregate utility