It is unclear to what extent the ICT investment and ICT output shown in official statistics reflect true value added—the calculation of ICT investment in real terms could be addressed in various ways. A simple approach is to assume that the deflator for ICT investment is the same as for ICT products, a more refined approach used here is to focus on the ICT investment price index which is falling in almost all OECD countries. The implication is that true ICT investment and hence true real GDP is higher than stated in statistics that do not consider adequate price indices for calculating real figures. Moreover, the internet—as an important field of ICT—is a crucial digital element that stands not only for consumption on the side of private households, rather because many individuals use the internet at home and are active as “prosumers” (a hybrid role of consumer and producer) a part of the time budget of private households can even be interpreted as labor input for production. A growing number of old and new services can be availed of via the internet and the creation of certain services relies on the active involve- ment of digital users—this could even include certain digital entertainment activ- ities in which users of digital networks cooperate in providing joint services to each other. This digital self-service value-added is increasing in many countries of the world.