Whether referring to the statistical universe or to a representative sample, data must always be  based on concepts that are clear and consistent with the analytical objects to be studied. Each day we face new social and economic phenomena, as well as new models for organising our work, the space in which we move, and even our leisure.
The emergence of Global Value Chains is just one resounding example. Do we currently have the best statistical concepts and indicators to adequately grasp these ever-changing trends? Probably not. But even with the right concepts, the data collected must also meet demanding quality and consistency standards.