How do importing activities matter in explaining firm heterogeneity? How firm performances are related to foreign markets heterogeneity? Using a rich database on Italian manufacturing firms, this essay adds new evidence on the relationship between trade status and firm characteristics. We...

This study extends the stream of research that is concerned with the influence of portfolio interrelationships on firm performance by employing a sample of European companies. The findings of this study confirm a positive relationship between resource-based relatedness as measured by Robins and...