How meaningful, reliable and useful are the comparisons being made by the media and politicians of the impact of Covid-19 on different EU member states? Linda Hantrais examines how the value of comparisons for policymaking within the EU can be improved. She argues that analysis of information about the numbers of Covid-19 cases, deaths and policy measures should take account of the reasons for variations in national and regional policy responses, and their outcomes. https://blogs.lse.ac.uk/europpblog/2020/05/19/comparing-european-reactions-to-covid-19-why-policy-decisions-must-be-informed-by-reliable-and-contextualised-evidence/