Claes-Fredrik Helgesson is Professor in Technology and Social Change at Linköping University. His research interest concerns in broad terms the intertwining of economic organizing, science, and technology. The theoretical inspiration comes primarily from economic sociology and social studies of science and technology (STS). His current project, ‘Trials of Value’ together with Francis Lee, investigates the designing of controlled medical experiments as a site where scientific, medical, and economic aspects are deliberated upon when establishing what knowledge is worth pursuing. Helgesson is co-founder and co-editor of Valuation Studies, a new open access journal, which published its first issue in spring 2013.