micro economics theme 1 Flashcards
Calculation for PED
% change in Q demanded. / % change in P
SPLAT meaning for PED
S- substitutions
p - percent of income
L - luxury or necessity
A- addictive
T- time period
Calculation for YED (income elasticity of demand)
% change in Q demanded / % change in income
a negative figure of YED means
income rises , Q demanded falls
positive figure of YED mean s
income rises , Q demanded rises
when is a good , luxury , necessity ,inferior
> 1, 0-1 , <0
calculation for PES
%change in Q supplied / % change in price
PES factors (4)
time to produce
stock ability
factor immobility
spare production capacity
what is the price mechanism
force of supply and demand determine prices
three functions of price mechanism
singling
rationing
incentive
Consumer surplus meaning
number of people willing to pay above the given price
producer surplus meaning
number of producers willing to supply a good/ shrive for the price they receive
tax definition
compulsory contribution to government revenue
types of tax
with example
direct tax - national insurance , income tax , cooperation tax
indirect tax
- VAT
the two types of indirect taxes
Specific - amount of tax used is same
Ad valorem
- a percentage tax. e.g VAT