Private Product Remaining
is a means of national income accounting similar to the more commonly encountered GNP
that provides a more accurate assessment. Since government is financed through taxation and any resulting output is not (usually) sold on the market, there's no way to place a meaningful value on it (see Socialist calculation problem
), and yet it is counted in GNP. Murray Rothbard
developed the GPP
(Gross Private Product) and PPR
measures to compensate. GPP is GNP minus income originating in government and government enterprises. PPR is GPP minus the higher of government expenditures and tax revenues plus interest received.