When developing macroeconomic models, economists change their focus from the relationship between consumption and disposable income to the relationship between consumption and real GDP.
This term is refered to as the gross domestic product of an economy. GDP is the value of the total goods and services that was produced in an economy at a particular time.
Real GDP makes use of prices that have been calculated for inflation to measure the value of goods.
Read more on GDP here: https://brainly.com/question/1383956
