Abstract copyright UK Data Service and data collection copyright owner.The aims of the survey were: 1. To carry out a systematic and comprehensive comparison of Family Expenditure (FES) and Family Resources Survey (FRS) micro-data as inputs into a tax-benefit microsimulation model. 2. To draw general lessons from this exercise about the relative merits of the two datasets for descriptive purposes, and to establish the extent to which they can be considered as representative of the same population. 3. To develop methods for the enhancement of FRS data with expenditure data from the FES, using statistical matching and other imputation techniques. The intention is to experiment and explore a range of techniques and assumptions with the aim...