Resumen: In a differentiated triopoly model with heterogeneous firms, the local stability of the Nash equilibrium under both quantity and price competition is analyzed. We find that the presence of a firm following a gradient rule based on marginal profits, and a player with adaptive expectations, determines the local stability of the Nash equilibrium, regardless the competition type, while the effects of the degree of product differentiation on the stability depend on the nature of products. Moreover, the Nash equilibrium is more stable under quantity competition than under price competition. Idioma: Inglés DOI: 10.1016/j.matcom.2016.07.001 Año: 2017 Publicado en: MATHEMATICS AND COMPUTERS IN SIMULATION 132 (2017), 86-99 ISSN: 0378-4754 Factor impacto JCR: 1.476 (2017) Categ. JCR: MATHEMATICS, APPLIED rank: 60 / 252 = 0.238 (2017) - Q1 - T1 Categ. JCR: COMPUTER SCIENCE, SOFTWARE ENGINEERING rank: 46 / 104 = 0.442 (2017) - Q2 - T2 Categ. JCR: COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS rank: 70 / 105 = 0.667 (2017) - Q3 - T3 Factor impacto SCIMAGO: 0.613 - Computer Science (miscellaneous) (Q1) - Theoretical Computer Science (Q2) - Applied Mathematics (Q2) - Modeling and Simulation (Q2) - Numerical Analysis (Q3)