1. A computer implemented financial accounting method, implemented on a computer usable medium having a computer readable program code embodied therein, said computer readable program code adapted to be executed to implement a method for generating and outputting an income statement, said method comprising: providing a computer system, wherein the system comprises the computer usable medium with the computer readable program code being executed to perform the following steps: electronically receiving, at the computer usable medium, at least one credit and one debit posting, said at least one credit and one debit posting comprising an identification of an account to be credited, an identification of an account to be debited, and a posting value to be credited to said account to be credited and to be debited to said account to be debited; automatically updating at least one position account based upon said posting value to be credited to said account to be credited and to be debited to said account to be debited, said at least one position account being either an asset and/or a liability account; automatically updating at least one revenue or expense account based upon said posting value to be credited to said account to be credited and to be debited to said account to be debited; automatically calculating a start-of-period present value of said posting value to be credited to said account to be credited and to be debited to said account to be debited; automatically calculating a Shift-value defined as being said posting value to be credited to said account to be credited and to be debited to said account to be debited minus said start-of-period present value; automatically posting said Shift-value to said at least one revenue or expense account; automatically posting said Shift-value to an Forward-shift Operating Income account; obtaining a balance for said at least one position account; obtaining an r value, wherein r is an expected rate of return; automatically using an Ex Ante Equation stored in the computer readable program code to automatically calculate at least one Market Income value based upon said balance of said at least one position account and based upon said obtained r value, wherein said Ex Ante Equation being: 
 Market Income=(obtained balance for said at least one position account)*(1−[1/(1+ r )]); and the computer readable program code generating and outputting an income statement, said outputted income statement containing balance of said at least one revenue or expense account and/or a value that subsumes said balance of said at least one revenue or expense account, said outputted income statement also containing either said at least one Market Income value and/or a value that subsumes said at least one Market Income value.