https://www.socialeurope.eu/2017/06/oecd-joined-campaign-higher-wages/
https://www.socialeurope.eu/2017/06/dispelling-creative-myths-lower-employment-protection/
http://foodresearch.org.uk/wp-content/uploads/2016/07/Agricultural-labour-briefing-FINAL-4-July-2016.pdf
https://www.socialeurope.eu/2017/06/answer-wages-not-capital/