Malin Dahlström is a doctoral candidate in economic history at the University of Gothenburg. She is in a group of cartel researchers and she is investigating the cartels in the limestone and cement industry in Sweden. She is going to defend her dissertation, "Competition, cooperation and concentration. The Limestone and Cement Industry in Sweden: 1871-1982," in September. She is working primarily with archival material from the different companies involved in the industries. She is also comparing the development of the cement industry in different contexts and she is going to focus on international cement cartels further on.