The single currency increases the benefits of a single market but also heightens the degree of mutual vulnerability to which member countries are exposed. National policymakers cannot fully protect their citizens from financial instability without pooling more sovereignty over decision-making. Countries that share a single market and a single currency need deeper institutional integration. The single supervisory mechanism is an example of this.
In the context of Data quality, I would urge the stakeholders to deliberate over the following: (a)  Do we all understand that in the process of decision making, rather than lack of data, it is inconsistent data which is more painful to handle?