This report is the result of a pilot project ‘Cross-border data collection’ carried out by a consortium of statistical institutes. The objective was to develop methodology to produce cross-border information. The consortium that carried out the project Cross-border Data Collection consists of the following statistical institutes: Statistics Belgium, INSEE (FR), IT.NRW (DE), ISTAT (IT), Statistical Office of the Republic of Slovenia (SI), GUS (PL), Statistics Denmark (DK) and Statistics Netherlands (NL) as project leader. The project took the theme of labour market as the focus of the attention as a case study to show what is possible. The project investigated the potential of three types of data sources in parallel: the Labour Force Survey (LFS), Administrative data and Mobile phone data.