Regional differences in the economic impact of lockdown measures to prevent the spread of covid-19: a case study for Colombia - Bonet, Jaime; Ricciulli-Marín, Diana; Pérez-Valbuena, Gerson Javier; Haddad, Eduardo Amaral; Araújo, Inácio Fernandes de; Perobelli, Fernando Salgueiro (The Colombian economy and its regional structural challenges : a linkages approach, 2023)