Inferring psychological traits from spending categories and dynamic consumption patterns Natkamon Tovanich, Simone Centellegher, Nacéra Bennacer Seghouani, Joe Gladstone, Sandra Matz and Bruno Lepri EPJ Data Sci., 10 1 (2021) 24 Published online: 08 May 2021 DOI: 10.1140/epjds/s13688-021-00281-y