This paper revisits the estimation of private returns to R&D. In an extension of the standard approach, we allow for endogeneity of production decisions, heterogeneity of R&D elasticities, and asymmetric treatment of intramural and extramural R&D. Our empirical analyses are based on an extended...

Purpose Over the past decades, the global solar photovoltaic (PV) market has experienced an unprecedented development associated with a substantial decline in solar PV module prices. A body of literature has attempted to identify and evaluate the different sources of price variation. However,...

This paper revisits the estimation of private returns to R&D. In an extension of the standard approach, we allow for endogeneity of production decisions, heterogeneity of R&D elasticities, and asymmetric treatment of intramural and extramural R&D. Our empirical analyses are based on an extended...

Welfare recipients in Germany are allowed to take up supplementary jobs while receiving welfare. The possibility of having a supplementary job was introduced to reduce welfare dependency and facilitate successful labor market integration. In the present study, we use the German Panel Study...

Welfare recipients in Germany are allowed to take up supplementary jobs while receiving welfare. The possibility of having a supplementary job was introduced to reduce welfare dependency and facilitate successful labor market integration. In the present study, we use the German Panel Study...