https://www.socialeurope.eu/2017/06/ten-thoughts-treaty-democratizing-euro-area-t-dem/
https://c24215cec6c97b637db6-9c0895f07c3474f6636f95b6bf3db172.ssl.cf1.rackcdn.com/interactives/2018/tiger/assets/2018-04/2018-04-tiger-total.pdf
https://www.omfif.org/analysis/commentary/2017/june/uk-risks-falling-behind-europe/
http://english.bdi.eu/#/article/news/robust-economy-no-cause-for-complacency/