About the Authors

Marco Alderighi

Roles Project administration

‡ These authors also contributed equally to this work.

Affiliation Department of Economics, Management and Quantitative Methods, University of Milan, Milano, Italy

Tiziana Ciano

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

‡ These authors also contributed equally to this work.

Affiliation Department of Economics and Political Sciences, University of Aosta Valley, Aosta, Italy

Massimiliano Ferrara

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

massimiliano.ferrara@unirc.it

‡ These authors also contributed equally to this work.

Affiliation Department of Law, Economics and Human Sciences, University Mediterranea of Reggio Calabria, Reggio Calabria, Italy

Domenico Santoro

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

‡ These authors also contributed equally to this work.

Affiliation Department of Economics, Statistics and Business, Faculty of Technological and Innovation Sciences, Universitas Mercatorum, Roma, Italy

Competing Interests

The authors have declared that no competing interests exist.