M 1.2 Index Numbers Flashcards
Why are index numbers useful?
useful way of expressing economic date time series and comparing/ contrasting information
What is an index number?
a figure reflecting price or quantity compared with a base value
Index number formula?
index number in year y = data value in year y / base year value
What does nominal GDP measure?
the value of national output at current prices with no adjustment for inflation
What does real GDP measure ?
volume of output. It is adjusted for inflation and measured at constant prices
How do you calculate the approximate rate of increase of real GDP?
rate of increase of nominal GDP - inflation rate
How do you calculate the exact real GDP?
real GDP in year t = nominal GDp in year t x 100 / price index in year t