- internal R&D and external R&D acquisition - on productivity in the manufacturing and service industries. The sample comprises a … from lower to higher conditional quantiles. First, the effect of the marginal effect of internal R&D on productivity in … both sectors decreased as we moved up to higher productivity levels. Second, the marginal effect of external R …

The relationship between economic structure and productivity growth has been a subject of increasing interest over …. Traditionally, productivity has been introduced as explaining factor of tertiarization processes in advanced economies, while it has … been simultaneously assessed that services display lower productivity levels and growth rates than other economic …