The potential of such data to enrich central bank analysis in the future is considerable, however, as are the challenges that come along with it. For this reason, I encourage all of you to continue your efforts and to work in the same collaborative spirit as you have done so far. Thank you. 1 See also Tissot, B.
(2017), “Big data and central banking”, IFC Bulletin No 44. Big data usually refers to  unstructured data resulting from non-statistical activity and/or structured data that create operational challenges owing to their size or complexity; see e.g.