MAX-lab was a Swedish national research facility for synchrotron radiation, nuclear physics, and accelerator physics, in operation between 1986 and 2015 and located on the northern campus of Lund University. This report is the result of a comprehensive analysis of the impact of MAX-lab on science, economy, and society, and on local, national and international level. The report is based on official documentation, statistics, interviews, and previous studies of the history of MAX-lab. Its analysis and conclusions contribute to a broader and deeper understanding of the role of research infrastructures in science and society.