This report investigates whether information collected by large commercial companies about their customers might have value to the UK's Office for National Statistics. ONS's focus is on information which may improve: Population Estimates: providing evidence of current numbers and types of...

In the UK, in order to link individual-level administrative records to survey responses, a respondent needs to give their written consent. This paper explores whether characteristics of the respondent, the interviewer or survey design features influence consent. We use the BHPS combined with a...

Survey under-coverage of top incomes leads to bias in survey-based estimates of overall income inequality. Using income tax record data in combination with survey data is a potential approach to address the problem; we consider here the UK's pioneering "SPI adjustment" method that implements...

Big Data collected by customer-facing organisations - such as smartphone logs, store loyalty card transactions, smart travel tickets, social media posts, or smart energy meter readings - account for most of the data collected about citizens today. As a result, they are transforming the practice...