Year-end level from unpublished BEA data on current cost stock of research and development (a portion of Fixed Asset Table 4.1 Current-Cost Net Stock of Private Nonresidential Fixed Assets by Industry Group and Legal Form of Organization; line 8, Farms, Intellectual property products). Other quarter's levels are derived from year-end level, plus the quarterly unadjusted transactions calculated as gross investment (FOF series FU135013033) less depreciation (FOF series FU136330033), plus an estimate of capital gains based on NIPA, Table 1.1.4 Price Indexes for Gross Domestic Product, line 12, Nonresidential, Intellectual property products.
Last edited on: 09/16/2013