“…The observation that these products are unmeasured contributions to consumer welfare appears in the literature [Brynjolfsson et al, 2018;Diewert et al, 2017;OECD, 2018a, p. 7] but the additional point made here is that while these products may or may not be product innovation, they are a starting point for user innovation which has not been explored. Innovation in other economic sectors is not part of official statistics although there have been surveys of household innovation documented by von Hippel [von Hippel, 1988[von Hippel, , 2005[von Hippel, , 2017 and of the public sector (general government sector plus government institutions) [Arundel, Huber, 2013;Arundel et al, 2016;Bloch, 2010aBloch, , 2010bBloch, , 2013Bloch, Bugge, 2013].…”