The Groningen Growth and Development Centre (GGDC) was founded within the Economics Department of the University of Groningen in 1992. It was originally set up by a group of researchers working on comparative analysis of economic performance over time and across countries in the tradition of Angus Maddison. More recently, it has grown into a research centre that studies the interactions of globalisation, technology and institutional change, and its impact on long-run economic growth, structural change, productivity and inequality. The GGDC provides unique information on comparative trends in the world economy in the form of easily accessible datasets, along with comprehensive documentation. These data are made publicly available, which enables researchers and policy makers from all over the world to analyse productivity, structural change, and economic growth in detail.