Economics as a Social Science Flashcards
Social science
The scientific study of societies and social interaction.
Ceteris paribus
Latin for “all other things held constant”. Economists assume ceteris paribus to simplify their models.
Positive statement
A statement that can be tested using evidence to see if it’s true or false.
Normative statement
A statement that involves a value judgement
Opportunity cost
The benefit given up of the next best alternative
The economic problem (or problem of scarcity)
Humans have infinite wants but scarce resources
Economy
Any system that tries to solve the economic problem
Capital
The technology or machinery we use to make goods
Enterprise/Entrepreneurship
An entrepreneur combines and organises land, labour and capital to produce a good
Land
All the earth’s natural resources i.e. physical land but also raw materials
Labour
Human workers used to produce a good
Factors of production (CELL)
Capital, Enterprise, Land, Labour
PPF
Shows all possible combinations of two goods that can be produced, using all resources efficiently
Capital good
Goods we use to produce consumer goods e.g. an oven
Consumer good
Goods we consume e.g. a pizza
Division of labour
When a firm splits up its production process into smaller separate tasks, and assigns different workers to each of these tasks.
Specialisation
When a worker, firm or economy concentrates on producing a limited range of goods and services.
E.g. Farmers specialise in producing fruits and veg, Domino’s specialises in producing pizzas, Saudi Arabia specialises in producing oil
Functions of money
(DUMS, Donald Uses Money Shopping)
Deferred Payment
Unit of account
Medium of exchange
Store of value
Deferred payment
You can borrow money to buy goods now, and then pay the money back in the future
Unit of account
Money helps us compare prices of different products
Medium of exchange
We can use money to trade goods and services.
E.g. Domino’s pays its workers money for their services, the workers then use the money to pay for the goods and services they want
Store of value
You can store your money and save it for later.
Pros of division of labour
- Can increase productivity and output by specialising and using specialist equipment
- Can increase quality because workers master their craft
- Can decrease unit costs because workers are more efficient
- Can help firms save on training costs because each worker needs to be trained in fewer skills
cons of division of labour
- Demotivation can decrease productivity and output
- Demotivation can decrease quality because workers will take less pride in their work
- Can increase absenteeism, staff turnover and recruitment costs
- Specialised workers will have only one skill so may end up unemployed if they lose their jobs
Pros of specialisation and trade
- Wider variety of goods and services from trade
- Can increase overall output
- Can increase trade
cons of specialisation and trade
- If a region over-specialises and their specialist industry shuts down, workers will have no other work, leading to unemployment e.g. miners in the 1980s after the mines were shut down
- Countries can over-specialise and deplete their natural resources e.g. Saudi Arabia is slowly running out of its oil reserves
- We become vulnerable because if people specialised in producing a certain good or service go on strike or stop trading, we’re left without the goods and services we need
E.g. when train drivers strike the rest of us can’t get to work or school
Rational decision making for consumers
Economists assume that consumers want to maximise their utility.
Rational decision making for firms
Economists assume that firms want to maximise their profit
Utility
In economics, utility means happiness/benefit/satisfaction
Profit
Profit = Total Revenue - Total Cost
Total revenue
Total revenue is how much money a business receives from its sales.
Total revenue = price x quantity
Herd behaviour
Consumers are influenced by the behaviour of others.
E.g. consumers may start smoking just because they see friends and celebrities smoking.
Consumers are influenced by the behaviour of others.
E.g. consumers may start smoking just because they see friends and celebrities smoking.
When consumers are in the habit of making certain decisions.
E.g. consumers may continue to buy car insurance from their current provider out of habit, even if there are cheaper car insurance providers available.
Weakness at computation
Consumers are bad at making calculations, estimating probabilities and working out future benefits/costs.
E.g. consumers may miscalculate which mobile phone contract offers the best value for money.
E.g. consumers overestimate the probability of a plane crash (it’s more likely that you will die wrestling a vending machine than in a plane crash).
E.g. consumers overestimate the future health benefits of “superfoods” and underestimate the future health costs of smoking.
- Market failure
When the price mechanism leads to a misallocation of resources.