Resumen: This paper analyses how board structure influences firm performance, considering the effect of dynamic endogeneity. For a sample of listed Spanish firms, the study did not find that board structure had any effect on the value of the firm, when controlling for dynamic endogeneity. The research results show the need to use appropriate econometric techniques (dynamic models) to avoid obtaining incorrect or biased results. They also show that each firm must determine the size and structure of the board given its own advice and control needs. Idioma: Inglés DOI: 10.1504/IJBGE.2023.10060656 Año: 2023 Publicado en: International Journal of Business Governance and Ethics ISSN: 1477-9048 Factor impacto CITESCORE: 1.9 - Strategy and Management (Q3) - Organizational Behavior and Human Resource Management (Q3) - Business and International Management (Q3)