INDIVIDUAL DECISION MAKING Flashcards
Define rational behaviour
Acting in pursuit of self-interest, maximising personal welfare, satisfaction or utility gained from production or consumption
Define utility
Satisfacton or economic welfare gained from consuming a good or service
Define marginal utility
Additional welfare, satisfaction or pleasure gained from consuming one extra unit
Diminishing marginal utility
Theory suggests that the ‘additional’ utility gained for each extra unit of consumption reduces
Factors limiting utility maximisation
Limited income
Given set of prices
Budget constraint
Limited time
What is revealed preference
Theory working backwards, consumers show preferences by choosing at given prices and for given income levels
What is the trade off for consumer decision making
Welfare vs Utility
What is asymmetric information
Leads to…
When one party posseses less relevant information to the exchange/ transaction than the other
Leads to adverse selection
What is adverse selection
when the unequal information distorts the market and leads to market failure
Example of adverse selection
For example, buyers of insurance may have better information than sellers. Those who want to buy insurance are those most likely to make a claim. Therefore firms are reluctant to sell insurance
What is behavioural economics
A method of econ-analysis that applies psychological insights into human behaviour to explain how individuals make choices and decisions
What are the unavoidable constraints subject to choice
(Bounded rationality explaination)
Imperfect information
Limited metal processing ability
Time constraint
What is bounded self control
Where individuals have limited self control to act rationally in their own interests
What is the difference between system 1 and 2 thinking
S1- ‘thinking fast,’ instinctive and intuitive
S2- ‘thinking slow,’ reflective thinking, concentration and effort
What is cognitive bias
A systematic error in thinking that affects the decisions and judgements people make