The Bank for International Settlements, aka BIS, surveyed 52 Central Bank about their use of Big Data. Abstract and conclusions are about a four minute read. Twenty two other pages for the deep dive.
Comment: excellent and very detailed work here, I’ve been through it twice and just know there is a third read upcoming. The speed of adoption is reassuring, as Central Banks are often criticised as being slow to adopt new technologies; this certainly isn’t the case with Big Data.