Text and Data Mining valid from 2018-02-12
First Online: 12 February 2018
Compliance with Ethical Standards
: Benedikt Habermeyer, Hristijana De Gennaro, Rene Channa Frizi, Patrik Roser andNiklaus Stulz all declare that they do not have any conflict of interest.
: The study was approved by the responsible regional ethics committee (BASEC 2017–01533). No human participants were involved and all procedures performed in the study were in accordance with the ethical standards of the responsible research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.