The purpose of this paper is to add definitions of HGFs in terms of value added and productivity, and analyze how much the different types of HGFs contribute to employment growth, economic growth, productivity growth and sales growth, if the same firms are included among HGFs irrespective of definition, and whether firm age and size influence the likelihood of a firm being a HGF when different definitions are applied. We thus apply four different growth indicators: growth in employment, sales, value added and productivity. Each growth indicator is measured in both absolute and relative (percentage) numbers. Following previous literature,.
