https://www.etui.org/sites/default/files/2020-08/Mitigating%20the%20COVID-19%20effect_2020_web.pdf
https://pubs.aeaweb.org/doi/pdfplus/10.1257/jep.38.3.89
http://visegradinsight.eu/app/uploads/2019/11/EaP-2030-Trends.pdf
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/966868/BUDGET_2021_-_web.pdf