
https://www.strath.ac.uk/media/1newwebsite/departmentsubject/strathclydebusinessschool/fraserofallander/FEC_Vol_41_No_2.pdf

http://www.bankofengland.co.uk/publications/Documents/speeches/2017/speech971.pdf

https://www.economiesuisse.ch/de/print/pdf/node/48868