Despite recent interest in measuring household activities, investment in household R&D (or household innovation), has not been considered in any of the literatures on national-accounts-style measurement. Household R&D is the dedication of household resources to creating a product or process that will generate a service flow in the future; that is a household intangible asset. This paper takes a step toward valuing household innovation in the U.S. by developing time series of nominal and real investment and capital stocks for household R&D. We find that household investment in R&D was more than 11 percent of R&D funded by the private business sector in 2017 and about half of what businesses spent on R&D to develop new products for consumers. If household R&D were judged to be in scope for GDP, GDP would have been 0.2 percent higher in 2017. We conclude that household R&D is important and warrants closer attention.

中文翻译：

---

家居创新和研发：比你想象的要大

尽管最近对测量家庭活动很感兴趣，但在任何关于国民账户式测量的文献中都没有考虑过对家庭 R&D（或家庭创新）的投资。家庭研发是将家庭资源投入到创造未来会产生服务流的产品或流程上；那是家庭无形资产。本文通过开发家庭研发的名义和实际投资和资本存量的时间序列，朝着评估美国家庭创新迈出了一步。我们发现，2017 年，家庭对研发的投资占私营企业部门资助研发的 11% 以上，约占企业为消费者开发新产品的研发支出的一半。如果家庭 R&D 被判断为 GDP 的范围，那么 GDP 将为 0。