Maggi, Mario https://orcid.org/0000-0002-7233-4443
Torrente, Maria-Laura https://orcid.org/0000-0001-8781-9278
Uberti, Pierpaolo https://orcid.org/0000-0001-8426-0368
Article History
Received: 16 December 2019
Accepted: 20 March 2020
First Online: 8 April 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Data are obtained from the Bloomberg database, provided by the University of Pavia.
: The codes written by the authors are not published.