what are negative externalities (external costs)?
two types of negative externalities
costs which affec third parties outsid the price transaction
* negative consumption externalities
* negative production externalities
negative effect on others
what is
* social cost
* social benefits
what is the price transaction ?
the transaction between the consumer and producer
what are two diagrams that edexcel require you to know?
how do you draw externaility diagrams?
negative/ positive, consumption/production, welfare triangle
if
* negative = social to the left
* positive= soical to the right
* production= affects costs
* consumption = affects benefits
* welfare traingle= always pointing towards social equilibrium
what are negative consumption externalities?
when consuming a good leads to costs to third parties outide the price transaction
eg: alchohol, cars
what are negative production externalities?
when producing goods leads to costs to third parties outside the price transaction
eg: building buildings, factories
what are private costs?
a cost to a producer or consumer within the price transaction
what is market failure?
when the price mechanism leads to an inefficent allocation of resources
price/quantity produced not beneficial to society
what are the 4 types of market failure?
what is the socially efficent equilibrium?
marginal social costs = marginal social benefits
* society welfare is maximised
what do the demand and supply lines becomes in production externality diagrams?
Draw a negative production externality/ external costs of production diagram
as quanity increases the external costs increase
what is the welfare loss?
distance between socially efficent equailibrium and the market intersection (MPC & MPB)
* Traingle shape
* Difference in quantity = overproduction
what are negative consumption externailities?
when the consumption off goods such as cigareetes leads to external costs (secondary inhaling)
what are welfare losses the causes of?
how do goverments counteract welfare losses?
indirect tax on goods and services
* tax size= external costs
* ‘negative production externality has been internalised’
* production moved to socially efficent equilibrium
draw a negative production externality with tax diagram
tax internalises the negative production externality
how does the cap and trade system work?
what are minimum prices?
the lowest price suppliers of a good can legally sell for
* price set above the equailibrium price
* creates excess supply
* market stuck in disequilibrium
reduction of over consumption
what is regulation?
when the goverment makes changes to the law to adress market failure
what are some eamples of regulation?
what are tradable pollution permits?
permits which allow firms to pollute up to a certain limit. These permits are then tradable between firms
eg: europe emissions trading scheme
what are positive externalities?
benefits that affect others outside the price transaction