1.1 nature of economics Flashcards
what is a social science?
a study of human behaviour and interaction
what is an economic model?
- an economic theory or collection of theories which allows us to simulate situations
- they are simplified versions of the world
why do economists use models?
to explain how the economy works
what does ceteris paribus mean?
- all sciences make assumptions when developing models and theories, and this allows them to simplify the problem
- economists use the term ‘ ceteris paribus’ meaning ‘all other things remaining equal’
- for example, when there is a change in income, demand will shift, ceteris paribus
why is it difficult for economists conduct scientific experiments?
humans are unpredictable and varied and exist in complex environments which might affect their behaviour; cannot be reduced to scientific law
what is a positive statement?
- a statement which is objective and made without any obvious value judgements or emotions
- they can be tested to be proven or disproven and they are often expressed in the form of a hypothesis that can be analysed and evaluated
what is a normative statement?
- one which is subjective and based on opinion, so cannot be proven or disproven
- it often includes words such as ought, maybe, unwise should etc. or says that one action is better than another
which 3 questions does the study of economics seek to answer?
what to produce?
how to produce?
for whom to produce?
what does ‘scarcity’ mean?
resourses are scarce in relation to the demand placed upon them
what is meant by a ‘renewable resource’?
- resource of economic value that can be replenished or replaced on a level equal to consumption
- for example, oxygen, solar power and fish are renewable
- as long as the rate of consumption is less than or equal to the rate of replenishment, the stock will not decrease
what is meant by a ‘non-renewable resource’?
- a resource of economic value that cannot be readily replaced by natural means on a level equal to consumption
- this includes fossil fuels such as coal, oil and gas.
what is the economic problem?
infinite wants and limited resources; scarcity
what are the 4 factors of production?
land
labour
capital
enterprise
what is the reward for enterprise?
profit
what is the reward for capital?
interest
what is the reward for land?
rent
what is the reward for labour?
wages
why do opportunity costs exist?
scarcity; since we cannot have
everything, we must make decisions
what is opportunity cost?
the next best alternative forgone when making a decision in order to receive your first choice
give an example of an opportunity cost for a consumer
when buying a new TV, the consumer foregoes spending that money on a smartwatch