 Since 2008 Krämer has been a member of the North Rhine-Westphalian Academy of Sciences, Humanities and the Arts.He is in addition a member of the Gesellschaft zur wissenschaftlichen Untersuchung von Parawissenschaften (Society for the Scientific Investigation of Parasciences).Krämer publishes "Unstatistik des Monats" together with the psychologist Gerd Gigerenzer and the economist Thomas K. Bauer on the web site of RWI Essen.