“…A good deal of research on constraints to innovation relies on the CIS data set. Examples are Mohnen, Palm, van der Loeff, and Tiwary (2008), Galia, Mancini, and Morandi (2012), Iammarino, Sanna-Randaccio, and Savona (2007), D 'Este, Iammarino, Savona, and von Tunzelmann (2008), to name just a few. Earlier contributions to the literature that are not based on CIS data include work of Piatier (1984) and later Hadjimanolis (1999Hadjimanolis ( , 2003.…”