T1.2 - Econ Flashcards
State 3 forms of irrationality
Weakness of computation
Habitual behaviour
Herd behaviour
Explain ‘Weakness of computation’
Consumers/producers fail to properly understand the costs & benefits of choices presented to them
Explain ‘Habitual behaviour’
Consumers/ Producers continue to behave in the same way over time even though better alternatives become available
Explain how consumers (households) rationalise
Use their income to maximise the fulfilment of their wants/needs
Consumers utility (=happiness) maximised
Explain how producers (firms) rationalise
They see to profit maximise
Define demand
Demand is the willingness and ability of consumers to purchase a good at a given price
Travel by bus is an example of a good for which demand decreases as income increases. This is referred to as a…
Inferior good
One explanation of the shape of a downward sloping demand curve is the law of diminishing marginal utility. What does this law suggest?
As consumers consume additional quantities of a good, the satisfaction derived from consuming each additional unit diminishes
What is utility?
Utility is a measure of satisfaction from consumption
What is marginal utility?
Marginal utility refers to the additional satisfacation or utility gained from consuming one more unit of a good or service
What is the law of diminishing marginal utility?
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 goods constant gained from each additional unit will decrease
Define disutility
Disutility refers to the negative feelings, discomfort, or displeasure associated with certain activities, goods or services
When is total utility maximised?
Total utility for a single product is maximised when a consumer consumes the quantity of that product where the marginal utility is zero
What does the rational choice theory assume?
Rational choice theory assumes that consumers always behave rationally in allocating their limited budget between different products to maximise total satisfaction from purchases
What is the condition for maximising total utility?
MUA/PA = MUB/PB
Marginal utility/ Price of given product
Causes of shifts of a demand curve:
Changing prices of substitutes in competitive markets
Effects of advertising and marketing changing people’s tastes
Changes in the size and age structure of a nation’s population
Define Price Elasticity of Demand (PED)
Price elasticity of demand measures the responsiveness of the quantity demanded of a good or service to changes in its price
State the formula for PED
PED = %change in Quantity demanded/ Change in PRICE OF x
Factors affecting price elasticity of demand
Number of close substitutes
Habitual demand
Strength of customer brand loyalty
Define Income elasticity of demand (YED) & formula
YED measures the responsiveness of demand following a change in real income
Formula: %change in demand / %change in income
Describe Normal goods
Normal goods have a positive income elasticity of demand so as consumers’ income rises, more is demanded at each price
Describe inferior goods
Inferior goods have a negative income elasticity of demand meaning that demand falls as income rises
Examples of inferior goods
Urban bus transport
Cigarettes
Own-labels cereal
Economy foodstuff
Economy class travel