‘Not-Invented-Here (NIH) Syndrome’ refers to a corporate or business culture that prevents buying, using or copying (and sometimes even learning) from others in the same business domain/field. An external idea or solution is rejected because it was not developed in-house and no evidence suggests that an internally developed idea or solution would be better.
The unwillingness or total rejection to use an idea or product because it originates from another culture is also seen as a form of nationalism (where any thing Not-Invented-Here is not as good as ours and the thinking that if if the idea was good enough we would have already thought of them) and is closely related to the ‘Let’s Re-Invent the Wheel’ syndrome’.
The opposite syndrome or culture is referred to as Proudly Found Elsewhere (PFE).
Case in point: Procter & Gamble’s (P&G’s) strategy for the new century, “Connect and develop” was introduced after its 1980s global innovation model (invent-it-ourselves model) proved ineffective. P&G decided to look sources for innovation outside. The ‘connect and develop’ model used technology and networks to seek new ideas and solutions externally.