National Income

GDP = C+I+G+(X-M)

GNP= C+I+G+(X-M)+ NFIA

                =GDP+NFIA

NNP=GNP-CCA

NNP=C+I+G+(X-M) +NFIA-CCA

National Income =NNP at factor cost= Wage+ Rent+ Interest+ Profit

NI= NNP at Market Price + Subsidies - Indirect Tax

                = GNP-CCA+ Subsidies - Indirect Tax

= GDP+NFIA -CCA+ Subsidies - Indirect Tax

Personal Income  :

PI= NI-UCP-CPT-SSC+TP+IP

                NI= National Income

UPC=Undistributed Corporate Tax

                CPT=Corporate Profit Tax

                SSC=Social Security Contribution

                TP=Transfer Payment

                IP= Interest Payment to the public Debt.

Disposable Income:

DI =PI-DT

                DT= Direct Tax