RT Book, Section T1 The innovation effects of engaged actors in Open Platform Ecosystems A1 Quero-Gervilla, María José A1 Luzi, Marco K1 Creatividad en la empresa K1 Economía colaborativa AB This chapter explores how innovation emerges within open platform ecosystems, using the Service-Dominant Logic (SDL) as a theoretical foundation and focusing on rewards-based crowdfunding as a practical case. Open platforms democratize innovation by enabling diverse actors to interact and integrate resources beyond firm boundaries. Innovation is no longer seen as serendipitous but rather as the outcome of deliberate engagement and resource exchange.The chapter introduces the “Crowdfunding Ecosystem Resource-Density Management Model,” which links actor engagement and resource density to ecosystem innovation capacity. Actor engagement—understood as both the willingness and activity of integrating resources—drives the system’s potential for emergence and transformation. The model presents four strategic scenarios based on combinations of high or low engagement and resource density: increase resources, maintain innovation, pivot the business model, or enhance engagement.The work contributes to theory by clarifying how ecosystems self-adjust and evolve through recursive interactions. It also offers practical guidance for designing strategies in dynamic, digital, multi-actor environments. Future research is encouraged to further explore actor engagement, resource liquefaction, and innovation processes in open and complex contexts like crowdfunding platforms. PB Springer Nature YR 2025 FD 2025-03-18 LK https://hdl.handle.net/10630/38450 UL https://hdl.handle.net/10630/38450 LA eng NO Quero, M.J., Luzi, M. (2025). The Innovation Effects of Engaged Actors in Open Platform Ecosystems. In: Sarno, D., Polese, F., Vargo, S.L. (eds) Complexity and Emergence in Market Ecosystems. New Economic Windows. Springer, Cham. NO Capítulo de investigación. Política de acceso abierto: https://www.springernature.com/gp/open-science/policies/book-policies DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 24 ene 2026