Chain of custody · waved through on who handled it
Not Invented Here
Not Invented Here (NIH) syndrome is the tendency to reject or devalue ideas, products, or knowledge from external sources primarily because they originated outside one's own group or organization.
Entered into evidence“The tendency of a project group of stable composition to believe it possesses a monopoly of knowledge of its field, which leads it to reject new ideas from outsiders to the likely detriment of its performance.”
→ follow the claim down the corridor, hand to hand
Filed · origin
Ralph Katz, Thomas J. Allen, 1982
Investigating the Not Invented Here (NIH) Syndrome: A Look at the Performance, Tenure, and Communication Patterns of 50 R&D Project Groups
Handler 01 · study
Katz & Allen R&D group study
Found a curvilinear relationship between group tenure and performance: stable membership improved coordination initially but eventually reduced communication with external sources, leading to insular rejection of outside ideas and declining performance.
Katz & Allen, 1982 · not reported
Handler 02 · study
Hussinger & Wastyn knowledge source study
NIH syndrome occurred when knowledge was acquired from competitors (35% increase in internal resistance) but not from suppliers, customers, or universities. Top-performing firms were most likely to experience NIH when sourcing from competitors.
Hussinger & Wastyn, 2011 · 35% increase in likelihood of internal resistance at means of other variables
Handler 03 · study
Ariely NIH ownership experiment
Participants consistently rated their own solutions higher than externally generated ones, even when their 'own' solutions were essentially identical to those created by researchers, demonstrating that sense of ownership alone drives overvaluation.
Ariely and colleagues, 2010 · not reported
Final disposition
Admitted
The NIH syndrome has been replicated across multiple studies and contexts. Katz & Allen's finding that long-tenured R&D groups become insular has been widely cited and extended. Hussinger & Wastyn (2011) replicated the competitor-knowledge-source effect in German manufacturing. The 2021 Research Policy study of 565 global R&D projects found NIH reduced external knowledge absorption by 6.1% per one-point increase. However, much NIH research is correlational rather than experimental.
Replication — robust. The NIH syndrome has been replicated across multiple studies and contexts. Katz & Allen's finding that long-tenured R&D groups become insular has been widely cited and extended. Hussinger & Wastyn (2011) replicated the competitor-knowledge-source effect in German manufacturing. The 2021 Research Policy study of 565 global R&D projects found NIH reduced external knowledge absorption by 6.1% per one-point increase. However, much NIH research is correlational rather than experimental.
Handling note · how it gets waved through
NIH syndrome operates through multiple psychological mechanisms identified by Antons & Piller (2015): ego-defensive function (protecting self-esteem derived from domain expertise), value-expressive function (affirming one's values), social-adjustive function (maintaining positive group identity through in-group favoritism), knowledge function (preference for consistent understanding), and utilitarian function (greater rewards for creating than adopting). Social identity theory explains why knowledge from similar out-groups (competitors) triggers strongest resistance - it threatens group distinctiveness.
Competing account — Some researchers view NIH as rational risk-aversion rather than pure bias, given the costs and risks of integrating external technology. Others emphasize structural organizational factors (incentive systems, communication channels) over individual attitudes.
Seen in the field
tech · 1975-2012
Kodak rejects its own digital camera invention
Kodak engineer Steve Sasson invented the digital camera in 1975, but Kodak management rejected it, fearing it would cannibalize film sales. Kodak filed for bankruptcy in 2012 after competitors seized the digital photography market.
tech · 1876
Western Union rejects the telephone
In 1876, Western Union President William Orton dismissed Alexander Graham Bell's telephone: 'There is nothing in this patent whatever, nor is there anything in the scheme itself, except as a toy.' Western Union missed the opportunity to dominate telecommunications.
tech · 2010s
SC Johnson Brise One Touch success over NIH bias
An innovative air freshener product launched by an Asian SC Johnson subsidiary was initially ignored by the larger U.S. company due to NIH bias. The German subsidiary later launched it as Brise One Touch, achieving 50% market share in its category.
To break the chain
Rotate team members across projects, engage outsiders in strategy and evaluation, establish open innovation practices, and create incentive systems that reward adopting valuable external knowledge, not just creating internal ideas.
Hussinger & Wastyn (2011) found that successful firms sourcing from vertical partners (suppliers, customers) showed reduced NIH, suggesting collaborative relationships attenuate the bias.
Catch it in the act
Watch for teams that always build their own solutions when proven external alternatives exist, that dismiss competitor innovations reflexively, or that value ideas based on who proposed them rather than objective quality.
Cross-referenced files
- IKEA effectsiblingThe IKEA effect describes overvaluation of physical objects one has created oneself, while NIH describes overvaluation of ideas one has created. Both reflect ownership-driven overvaluation.
- In-group favoritismmechanistically-linkedSocial identity theory explains NIH through in-group favoritism - employees identify with their organization and devalue external ideas to maintain positive group identity.
- Confirmation biasmechanistically-linkedNIH involves confirmation bias in evaluating external ideas - specialists prefer and positively review ideas similar to prevailing internal norms.