1.1 Nature of economics Flashcards
Define Ceteris Paribus
1.1.1
Ceteris paribus means “everything else remains constant” in Latin, therefore the assumption of “ceteris paribus” is when economists focus on changing one variable against another, whilst assuming all other variables to be unchanged.
Define the difference between a positive statement vs. a normative statement
1.1.2
Positive: objective, able to back with facts and evidence, value free.
Normative: subjective, based off value judgements, unable to be supported by evidence.
Value judgements: based on one’s opinion/beliefs rather than facts.
Define the economic problem
1.1.3
The economic problem of scarcity.
Situation in which people’s unlimited infinite wants exceed the limited resource available to fulfil those wants.
Define economic goods
1.1.3
Goods that are scarce or created from scarce resources. Limited in supply
Define free goods
1.1.3
Goods unlimited in supply -have no opportunity cost.
Define opportunity cost
The value of the next-best alternative foregone i.e. most desirable alternative given up as the result of a decision.
Related to marginal analysis
Define trade-off
Where one object is sacrificed in order to obtain another object.
Define the economic agents
1.1.3
3 key groups of decision makers:
1. Consumers - individuals & households.
Make choices on their expenditure, they demand goods & services. Need income to purchase. Make decisions on the supply of their labour.
2. Producers - people/firms
Producing goods/supplying services. Make choices on what they produce, techniques of production & prices they sell at.
3. Gov
Decide amount of involvement in prod & consumption process. Undertakes expenditure. Influences economy through taxation & regulation of markets.
Opportunity cost crucial - each face constraints on their choices.
Difference between renewable & non-renewable resources
Renewable: rate of extraction is lower than the natural usage rate, so can be replenished. Can be depleted too rapidly.
Non-renewable: Reserves are finite & unable to be replenished. Extraction and supply based on current prices i.e. prices guide resource allocation.
Define the 3 key economic questions
- WHAT goods/services to produce i.e. how should resources be allocated?
- HOW productive resources of the economy should be used to produce these goods/services?
- WHOM to produce for?
Define the factors of production
Resources used in the production process - human & physical.
1. LAND - the land & anything that comes from it e.g. oil, natural gas, fish from the sea. Paid by: rent
2. LABOUR - work/effort put into the prod. of the goods/services. Paid by: wages & salaries
3. CAPITAL - machinery/tools/buildings used to prod. goods/services e.g. delivery cans, pencils, desks, computers, conveyor belts.
Paid by: interest
4. ENTERPRISE - (entrepreneurship) combines all FoP. Paid/motivated by: profit.
Define an entrepreneur
A risk-taker, organises production and identifies projects to be undertaken. Combines land, labour and capital into goods/services to earn a profit.
Define capital goods
Goods useful not in themselves but for goods/services they can help produce in the future.
e.g. tills, software, machinery
Define consumer goods
Produced for present consumption & to satisfy human needs & wants directly.
Split into consumer durables, consumer non-durables and consumer services.
Difference between consumer durables, consumer non-durables and consumer services.
Consumer durables - provide a steady flow of utility/satisfaction.
e.g. washing machine, computers.
Consumer non-durables - used up during their consumption.
e.g. food, drink, energy
Consumer services e.g. car service, insurance, take away, haircuts.
Define the PPF
Production Possibility Frontier is a graphical representation of that maximum combination of goods/services an economy can produce in a given period when all available FoP are being fully used.
Two types of PPF
Concave to origin - due to law of diminishing marginal returns and increasing opportunity cost.
Linear - constant opportunity cost.
Define the Law of Diminishing Marginal Returns
Employing an additional factor of production will eventually cause a relatively smaller increase in output.
Define the Law of Increasing Opportunity Cost
The more resources put to producing good X, the extra output gets smaller.
Define the Marginal Cost of a good
The opportunity cost of producing one more unit of the good
Define productively efficient
FoP being used to their max. No wastage/unemployment of resources