“…The differences across the KIBS sub-sectors have not been broadly explored; thus, KIBS cannot be analysed as an undifferentiated group of establishments (Rodríguez, Doloreux, & Shearmur, 2017). In this sense, one of the most useful classifications of KIBS is the one proposed by Miles (2012) and which is currently used to understand in detail each industrial sector of KIBS (Miles et al, 2021): 1) traditional professional services (P-KIBS), which are composed of administration and institutional knowledge services, such as legal services (NACE M69.1), accounting services (NACE M69.2), business management (NACE M70.2), etc. ; 2) scientific and technological knowledge services (T-KIBS), which are made up of computer-related services (NACE J63), R&D services (NACE M72), engineering services (NACE M71.12), technical testing services (NACE M71.2), among others; and 3) more creative and cultural knowledge services (C-KIBS), which include design services (NACE M74.1), market research services (NACE M71.11), and advertising services (NACE M73.1), etc.…”