Media type: E-Book Title: The gray zone Contributor: Crudu, Federico [VerfasserIn]; Di Stefano, Roberta [VerfasserIn]; Mellace, Giovanni [VerfasserIn]; Tiezzi, Silvia [VerfasserIn] imprint: Odense, Denmark: Department of Economics, Faculty of Business and Social Sciences, University of Southern Denmark, [2022] Published in: Discussion papers on economics ; 2022,5 Extent: 1 Online-Ressource (circa 34 Seiten); Illustrationen Language: English Keywords: COVID-19 ; causal impact ; synthetic control method ; Red Zone ; Bergamo ; nonpharmaceutical interventions ; Graue Literatur Origination: Footnote: Access State: Open Access