CC BY 4.0Castellani, DavideDavideCastellaniPiva, MariacristinaMariacristinaPivaSchubert, TorbenTorbenSchubertVivarelli, MarcoMarcoVivarelli2022-03-0525.5.20182018https://publica.fraunhofer.de/handle/publica/25302210.24406/publica-r-25302210.1007/s10272-018-0725-8en303330600Can European productivity make progress?journal article