Annual transactions computed as gross investment in nonresidential research and development of life insurance companies plus one half of gross investment in nonresidential research and development of other insurance (unpublished BEA data). Annual transactions are converted to seasonally adjusted quarterly transactions by calculating the ratio of the above series to annual data on private domestic investment in research and development (a portion of NIPA, Table 1.1.5 Gross Domestic Product, line 12, Private domestic, Nonresidential, Intellectual property products); multiplied by quarterly data on private domestic investment in research and development (a portion of line 12, Private domestic, Nonresidential, Intellectual property products). Unadjusted transactions are calculated as transactions at a seasonally adjusted annual rate divided by 4. Series has no levels.
Last edited on: 09/17/2013