Answer:
To calculate national income by expenditure method, we use the following formula:
National Income (NI) = Private Final Consumption Expenditure (PFCE) + Government Final Consumption Expenditure (GFCE) + Gross Domestic Fixed Capital Formation (GDFCF) + Net Exports (NX)
Where,
Gross Domestic Fixed Capital Formation (GDFCF) = Net Domestic Capital Formation + Consumption of Fixed Capital
Net Exports (NX) = Exports - Imports
So, putting the given values in the formula, we get:
Gross Domestic Fixed Capital Formation (GDFCF) = Net Domestic Capital Formation + Consumption of Fixed Capital
= 770 + 130
= 900
Net Exports (NX) = Exports - Imports
= -30
National Income (NI) = Private Final Consumption Expenditure (PFCE) + Government Final Consumption Expenditure (GFCE) + Gross Domestic Fixed Capital Formation (GDFCF) + Net Exports (NX)
= 2000 + 1100 + 900 - 30
= 3970
Therefore, the national income by expenditure method is 3970,000.