Consumer Behaviour Flashcards
What is rational behaviour? (Orthodox economic theory)
- Choose independently from one another
- Have fixed and stable preferences
- Have access to complete and accurate information on all the available alternatives
- Respond to incentives to make optimal choices
What is the key assumption?
People make choices to maximise the utility/satisfaction (they get from spending their income).
Businesses aim to maximise their profits
What is utility?
Measures the satisfaction obtained from purchasing and consuming a product
What is total utility?
Total satisfaction from a given level of consumption
What is marginal utility?
The change in satisfaction from consuming an extra unit.
Supposed to diminish beyond a certain point (diminishing marginal utility)
What is margin?
Having a little bit more or less of something
- Benefit and Cost
Marginal benefit
Change in total private benefit from one extra unit
Marginal cost
Change in total private cost from one extra unit
Utility maximisation?
Consumers are assembled to attempt to maximise utility. With a single product this is the point of satiation
- Businesses = max profits