includes the own-account production of all goods that are retained by their producers as investment. The latter includes the production of fixed tangible assets (buildings etc.) as well as intangible assets (development of software etc.). Capitalised production is unsold production and is valued at production cost. Note that these capital goods are also to be included in investment.
The production value is defined as turnover, plus or minus the changes in stocks of finished products, work in progress and goods and services purchased for resale, minus the purchases of goods and services for resale, plus capitalised production, plus other operating income (excluding subsidies).