RT journal article T1 Knowledge production and commercialization from R&D: the pharmaceutical sector A1 García Valderrama, Teresa A1 Sánchez Ortiz, Jaime A1 Mulero Mendigorri, Eva María A2 Economía Financiera y Contabilidad A2 Organización de Empresas K1 R&D activities K1 Efficiency K1 Pharmaceutical sector K1 Network DEA AB Purpose – The objective of this work is to demonstrate the relationships between the two main processes ofresearch and development (R&D) activities: the knowledge generation phase (KPP) and the knowledgecommercialization, or transfer, phase (KCP), in a sector that is intensive in this type of activity, such as thepharmaceutical sector. In addition, within the framework of the general objective of this work, the authors proposetwo other objectives: (1) make advances in network efficiency measurement models, and (2) determine the factorsassociated with efficiency in the KPP and in the KCP in companies of the pharmaceutical sector in Spain.Design/methodology/approach – A Network Data Envelopment Analysis (NDEA) model (F€are andGrosskopf, 2000) with categorical variables (Lee et al., 2020; Yeh and Chang, 2020) has been applied, and asensitivity analysis of the obtained results has been performed through a DEA model of categorical variables,in accordance with the work of Banker and Morey (1986), to corroborate the results of the proposed model. Thesample is made up of 77 companies in the pharmaceutical sector in Spain.Findings – The results obtained point to a greater efficiency of pharmaceutical companies in the KPP, ratherthan in the KCP. Furthermore, the study finds that 1) alliances between companies have been the acceleratingfactors of efficiency in the KCP (but patents have slowed this down the most); 2) the quality of R&D and thenumber of R&D personnel are the factors that most affect efficiency in the KPP; and 3) the quality of R&Dagain, the benefits obtained and the position in the market are the factors that most affect efficiency in the KCP.Originality/value – The authors have not found studies that show whether the efficiency obtained by R&Dintensivecompanies in theKPP phase is related to better results in terms of efficiency in theKCP phase.Nopapershave been found that analyse the role of alliances between R&D-intensive companies and patents, as agents thatfacilitate efficiency in the KCP phase, covering the gap in the research on both problems. Notwithstanding, thiswork opens up a research path which is related to the improvement of network efficiencymodels (since it includescategorical variables) and the assessment of the opinions of those who are responsible for R&D departments; itcan be applied to decision-making on the aspects to improve efficiency in R&D-intensive companies. PB Emerald SN 0025-1747 YR 2023 FD 2023 LK http://hdl.handle.net/10498/29889 UL http://hdl.handle.net/10498/29889 LA eng NO This work has been co-financed by the 2014–2020 ERDF Operational Programme and by the Department of Economy, Knowledge, Business and the University of the Regional Government of Andalusia. Project reference: FEDER-UCA18-103353. Title: Circular Economy and Efficiency: Towards new economics models. DS Repositorio Institucional de la Universidad de Cádiz RD 09-nov-2026