Purpose – The purpose of this paper is to determine if the relationship between growth and research and development (R&D) intensity is of a different nature in the context of low‐ and high‐tech Portuguese service small to medium‐sized enterprises (SMEs). Design/methodology/approach –...

<title>Abstract</title> Using two step method, namely probit regressions and dynamic estimators, and on the basis of two sub-samples of Portuguese SMEs: 1) 495 young SMEs; and 2) 1350 old SMEs, this study seeks to verify if age is a important factor of the relationships between determinants and profitability....

To investigate whether there is a similar relationship between R&D intensity and growth in high-tech and non-high-tech small and medium-sized enterprises (SMEs), we examine two samples of SMEs in manufacturing industries, applying the two-step estimation method. Our findings are that R&D...