(2) Individual Economic Decision Making Flashcards
Utility theory:
What is utility a measure of ?
- utility is a measure of satisfaction from consuming a good or service
Utility theory:
What is utility in economics?
- Is the satisfaction one receives from consuming a of good or service
Utility theory:
Why is the utility theory helpful for economists
- It is helpful as it is used as a theoretical construct to help economists understand and model human behaviour - (even if it’s not directly measurable in an objective sense)
Utility theory:
Why is this concept used with individuals
- It is used to understand the subjective preferences of individuals, when it comes to them making decision on how to allocate their limited budget
Utility theory:
What is marginal utility ?
- Marginal utility is the additional satisfaction or utility gained from consuming one more unit of a good or service
Utility theory:
The law of diminishing marginal utility
- States that as a person consumes more units of a particular good or service (while keeping the consumption of other products constant), the additional satisfaction or marginal utility gained from each additional unit will decrease
Utility theory:
Why are people more willing to buy more of a good when the price is lower
- Because a cut in price makes each additional unit more valuable in terms of the satisfaction it provides
Utility theory:
What is disutility
- It is the opposite of utility and it refers to the negative feeling, discomfort associated with certain goods or services
Utility theory:
What is an example of disutility
- Unpleasant work: jobs that are physically demanding
- travelling in crowded, uncomfortable public transport
Utility theory:
When is total utility maximised
- When consuming an additional unit of the particular product no longer provides any extra satisfaction - marginal utility is zero.
Utility theory:
What is the rational choice theory?
- Assumes that consumers always behave rationally in allocating their limited budget between different products to maximise total satisfaction from their purchases
Utility theory:
difference with maximising utility with single products and multiple products
- With a single product, the total utility is maximised when marginal utility is zero
- With multiple products - the condition for maximising utility is that consumer equalises the marginal utility per pound spent
Utility theory:
What is the condition for maximising total utility
MU of A / P of A = MU of B / P of B
Mu - marginal utility
P - price
imperfect information:
What is information essential for
- It is essential for making sound economic decisions
imperfect information:
what is impossible without information
- It is impossible to properly evaluate costs and benefits or make informed decisions