We use a unique rich newly built data set for German manufacturing enterprises to investigate the product differentiation firm performance relationship. We find that an increase in the degree of product diversification has a negative impact on profitability when observed and unobserved firm...

We use a unique rich newly built data set for German manufacturing enterprises to investigate the relationship between product diversification and the stability of sales and employment. We find that contrary to portfolio theoretic considerations more diversified firms exhibit a higher...

How effective are direct government policies for boosting exports? We answer this question with a structured overview of 34 studies covering 26 countries around the world, and in doing so, we provide nine findings. We show export boosting policies are heterogenenous by design and include export...

How effective are government policy attempts to boost firm exports in the short-run? We answer this question by conducting a review of 33 studies from 26 countries around the world, and provide nine findings. Export boosting policies are defined as a group of public policies that aim to increase...