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	Quadruple Helix Analysis	Triple Helix Analysis
Odbor	Science Technology Studies	Science Technology Studies
Rodina	Process / pipeline	Process / pipeline
Rok vzniku	2009	2000
Tvorca	Elias Carayannis & David Campbell (Quadruple Helix); Loet Leydesdorff (N-tuple formalisation)	Henry Etzkowitz & Loet Leydesdorff
Typ	Innovation-ecosystem framework	Innovation-systems framework and bibliometric indicator
Pôvodný zdroj	Carayannis, E. G., & Campbell, D. F. J. (2009). 'Mode 3' and 'Quadruple Helix': toward a 21st century fractal innovation ecosystem. International Journal of Technology Management, 46(3-4), 201-234.	Etzkowitz, H., & Leydesdorff, L. (2000). The dynamics of innovation: from National Systems and 'Mode 2' to a Triple Helix of university–industry–government relations. Research Policy, 29(2), 109-123.
Ďalšie názvy	Quadruple Helix model, Mode 3 innovation analysis, N-tuple helix analysis	Triple Helix indicator, University-industry-government analysis, Triple Helix synergy analysis
Príbuzné	4	4
Zhrnutie	Quadruple Helix analysis extends the Triple Helix of university-industry-government relations by adding a fourth helix—the media-based and culture-based public, civil society, and users—as a constitutive actor in innovation. It frames innovation as a 'Mode 3' fractal ecosystem in which knowledge is co-produced across multiple spheres, and it situates this within a broader N-tuple generalisation that can add further helices such as the natural environment in the Quintuple Helix.	Triple Helix analysis is a framework and bibliometric method for studying knowledge-based innovation as the evolving interplay of three institutional spheres—university, industry, and government. Rather than treating these as separate actors that occasionally cooperate, it models innovation as the overlapping, mutually shaping relations among them, and offers an information-theoretic indicator that quantifies how much the three spheres jointly reduce uncertainty in a knowledge economy.