https://www.imf.org/~/media/Files/Publications/WEO/2018/October/English/c2.ashx?la=en
https://www.ips-journal.eu/topics/european-union/beware-the-low-hanging-fruit-5019/?utm_campaign=en_869_20210305&utm_medium=email&utm_source=newsletter
CONTEXT ROLE OF GERMANY THE TAXES CONSIDERED GRAND THEMES OF THE EUROPEAN DIALOGUE ECONOMIC ...
http://www.bankofengland.co.uk/publications/Documents/speeches/2017/speech992.pdf