Answer:
real GDP per capita
Explanation:
Real GDP per capital relates to the calculation of a nation's gross productive capacity, regardless of the quantity of inhabitants and accounting for inflation. This will be used to evaluate living conditions between nations but over time.
This is used by the economists majorly, all over the world, to calculate the economic growth as this is the variable which closely depicts the true picture of the economy and whether or how much the growth is enjoyed by the individuals in the economy.