AUTHOR=Grima Simon , Spiteri Jonathan V. , Thalassinos Eleftherios TITLE=Editorial: Risk Management Models and Theories JOURNAL=Frontiers in Applied Mathematics and Statistics VOLUME=6 YEAR=2020 URL=https://www.frontiersin.org/journals/applied-mathematics-and-statistics/articles/10.3389/fams.2020.00008 DOI=10.3389/fams.2020.00008 ISSN=2297-4687