Year-end level from unpublished BEA data on securities, commodity contracts, and investments current cost stock of research and development (a portion of Fixed Asset Table 3.1I Current-Cost Net Stock of Private Intellectual Property Products by Industry, line 52, Finance and insurance, Securities, commodity contracts, and investments. Other quarter's levels are derived from year-end level, plus the quarterly unadjusted transactions calculated as gross investment (FOF series FU665013043) less depreciation (FOF series FU666330043), 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: 09/17/2013