(19)In order to improve the competent authorities' identification of those institutions which might be subject to excessive losses in their non-trading book activities as a result of potential changes in interest rates, the Commission should be empowered to adopt regulatory technical standards developed by EBA. Those regulatory technical standards should specify: the six supervisory shock scenarios that all institutions have to apply in order to calculate changes in the economic value of equity; the common assumptions that institutions have to implement in their internal systems for the purpose of calculating the economic value of equity, and in respect of determining the potential need for specific criteria to identify the institutions for which supervisory measures might be warranted following a decrease in the net interest income attributed to changes in interest rates; and what constitutes a large decline. The Commission should adopt those regulatory technical standards by means of delegated acts pursuant to Article 290 TFEU and in accordance with Articles 10 to 14 of Regulation (EU) No 1093/2010.