measures of economic activity Flashcards
national income
total income of an economy/ total output. includes wages, interest, rent & value of aggregate output from AS + AD
GDP + GDP *per capita *
gross domestic product: measure of aggregate output of an economy
GDP per capita: GDP/population - indicator of domestic output per person in population
GNI + GNI per capita
Gross national income: measure of total income recieved by residents of a country
GNI per capita: GNI/population - amount of income per person in an income
Nominal GDP & Real GDP
Nominal GDP
value of current output in current prices
= C + G + I + (X-M)
real GDP=
value of current output at constant (base year) prices.
= (Nominal/deflator) x 100
formula
GDP deflator
(Nominal GDP/real GDP) x 100
business cycle
GDP on verticle axis
time on horizontal
consists of short term fluctuations - expansions and contractions
stats problems with NI
NI = both GDP & GNI
- (a) non market sector is excluded from official figures
- (b) underground markets not included
- does not account for negative externalities
- does not measure the depleation of natural resources
- does not measure improvements in quality of goods
- purchasing power differs in different countries
Lorenze curve
plots cumulative % population on x-axis and cumulative % income on y-axis. on same scale from 0-100%
measures GDP/GNI do not accurately measure standard of living
SoL often depends on things that NI does not measure
- composition of output (merits goods vs. luxury goods)
- does not reflect life expectancy, health and education
- does not cnsider distribution of income
- does not consider or measure the increase in leisure time
- does not consider other impacts e.g. crime rates, gender inequality, political freedom
factors to consider when comparing int. SoL using NI figures
- per capita income figures must be used
- different distributions of income must be taken into account - per capita figs. are averages
- composition of output varies from country to country
- size of non-market sector differs from country to country
- size of underground markets differs in countries
- cost of living varies (PPP) is a much better reflection
- Green GDP - does not account for environmental impacts
purchasing power parity
special exchange rates between currencies that makes buying power = US$1