Economics AS (UNIT1)
definitions
- Created by: lola
- Created on: 26-03-11 11:41
the economic problem
goods and services: goods are considered to be tangible products that we can touch and see but services are not tangible.
Economic welfare:the satisfaction an individual or society get from the allocation of resources.
Opportunity cost:the next best alternative forgone when an economic decision is made
Economic goods:Goods that are scarce and therefore have an oppurtunity cost.
Free goods: Goods that have no opputunity cost for example air
Factor market: the market for the factors of production that make other goods and services.
Renewable resources: resources that are able to be replenished over time
the economic problem
Profit: when total income or revenue is greater than totla costs
free market economy: an economy with very limited government involvement in providng goods and services
production posibility boundary: indicates the maximum possible output that can be achieved with a fixed set of resources and technology in a particular time period
productive efficiency: when a firm operated at minimum average cost, producing maximum possible output
allocative efficiency:when an economy cannot produce more of one good without porducing less of another
productivity: a measure of efficiency measuring the ratio of inputs to outputs
Human capital: the skills, abilities, motivation and knowlege of workers. improvements in human capital raises productivity and shifts the ppb to the right
the economic problem
division of labour: breaking down the production process into a sequence of tasks, with workers assigned to a particular task
specialisation: the production of goods which are limited due to an individual factor of production
value judgments: statements or oppinions that cannot be tested or verified and is highly dependent on personal views
normative statement: oppinions that require value judgments to be made
positive statements: statements which can be tested against data
demand in a market
Demand: the amount that consumers are willing and able to buy at each given price
Effective demand: demand supported by the ability to pay for the good or service
Market Demand: The total demand in a market for a good
Contraction in demand: fall in demand due to a rise in prices
Extension in demand: increase in demand caused by the fall of price
Normal goods: goods or services that will increase in demand when incomes rise
Inferior goods: goods or services that will decrease in demand when incomes rise
complementary products: goods which are consumed together
supply in a market
supply: the amount offered for sale at each given price level
planned supply: the amount producers plan to supply at a given price
actual supply: the amount they actually produce into the market, this differs from planned supply due to staff absences and breakdowns
How a competitive market functions
Equilibrium: the price at which demand is equal to supply
Disequilibrium: when supply does not equal demand
Excess supply:
Market clearing price: the price where all goods that are supplied will be demanded
Elasticity
Price elasticity:
when elasticity is 0=perfectly inelastic
1= Unitary price elasticity of demand
+1= Price elsatic demand
cross price elasticity:
Market case study
Investment good: A product that will increase in value over time
Market failure: where the market fails to produce what consumers require at the lowest possible cost
govenrment failure: when government intervention to correct market failure doesn't improve the allocation of resources and worsens the situation
Buffer stocks: an intervention system that aims to linit fluctuations of the price of a commodity
Economies of scale: when an increase in the scale of production leads to reductions in the average costs of firms
diseconomies of scale: Where an in crease in the scale of production leads to increases in average total costs for firm
competition: where there are large amounts of buyers and sellers
Monoploy: a market structure dominated by a single seller
Merit Good: a good that would be under-consumed in a free market as individuals don't know the benefits ontained by consumption
Demerit Good: a good that is over-consumes in a free market as it does more harm than good in which consumers are unaware
Public good: a good that possesses the characteristics of non-excludabilty and non rivalary in consumption
Free-rider problem: where some consumers benefit from other consumers purchasing the good
Quasi-public good: a good that has some qualities of a public good but does not fully possess non-rivalary and non-excludability
private good: a good that is both exludable and rivals in consumption
Indirect tax: a tax on spending
pollution permits: a permit sold to firms by the government, allowing them to pollute up to a certain limit.
law of unintended consequences: where the actions of consumers, producers and governments have effects that are unanticipated
inflation: a persistant increase in the level of prices
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