http://www.transparency.org/news/feature/europe_and_central_asia_an_overall_stagnation
http://www.ips-journal.eu/topics/european-union/article/show/the-real-state-of-the-european-economy-2287/
https://www.project-syndicate.org/commentary/global-economy-downside-risks-by-nouriel-roubini-2017-06