This paper seeks to investigate whether age is a fundamental characteristic of the relationships between determinants and growth. The empirical evidence obtained allows us to conclude that: (1) age and size are restrictive factors of the growth of young SMEs, but they are not important for the...

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...

This article uses quantile regressions to study the relationship between the growth of Portuguese small and medium enterprises (SMEs) and its determinants. To control a sample selection bias, we use a two-step estimation. In the first stage, we verified that past growth, size, age, R&D...