Chapter 1 - 4 Flashcards
- PPF -CELL -economic data -economic problem (40 cards)
The scientific method
- postulates a theory
- gathers evidence to support or refute the theory
- accepts, modifies or refutes the theory
Simplification
- economic theories + models are unrealistic
- however it must be so if it is to be useful
What is ceteris paribus?
- all other things being equal
eg. only change one factor such as price + keep income or price of other goods constant
What is a positive statement
- can be proven to be true or false (can be supported or refuted by evidence)
eg. the service sector will grow by 30% in size over the next 5 years
What is a normative statement?
- valued judgement (opinion)
- statements that can’t be supported or refuted
eg. the gov should increase the state pension
Why do economists collect data? (2)
➜ scientific method requires that theories be tested
-used to gather data to support or refute hypothesis
➜ provide support for particular policies
- unable to make policy recommendations without data
➜ difficult to collect data
What measures inflation?
➜ Consumer Price Index (CPI)
What measures employment + unemployment?
➜ Labour Force Survey
What is the CPI and Labour Force Survey based on?
➜ surveys: only reliable if there is accurate sampling + measuring and rarely as accurate as a complete count
Nominal values
➜ values unadjusted for inflation
- expressed at current prices
Real values
➜ values adjusted for inflation
- constant prices
- use a base period
What is the basic economic problem?
➜ finite/scarce resources and infinite wants
What are economic goods?
➜ resources which are scarce
What are free goods?
➜ resources which are not scarce
- eg. air
What is scarcity?
➜ limited amounts of land, oil, good, water + other resources
What is economics?
➜ study of allocating scarce resources
What is opportunity cost?
➜ the benefit lost from the next best alternative
-eg. for producer, the opp cost of buying a machine might be the wage of 4 workers for 3 years
What is the advantage of free goods?
➜ no opportunity cost
- no resources need to be sacrificed when someone breathes the air or swims in the sea
What are the 3 parts of the economic problem?
➜ What is to be produced?
➜ How is production to be organised?
➜ For whom is production to take place?
What are the factors of production?
➜ Land
➜ Labour
➜ Capital
➜ Enterprise
Land
➜ not just land but natural resources, the sea, rainwater, natural forest
Non-renewable resources
➜ coal, gold, copper (land)
➜ once used will never be replaced
Renewable resources
➜ used + replaced
➜ fish stocks, forests, water
Sustainable resources
➜ can be exploited economically
➜ will not diminish/ run out
➜ eg. a forest can be if it survives over time despite economic activities like farming