A useful article relating to Employment and Unemployment https://www.theguardian.com/politics/2017/nov/19/there-are-no-unemployed-in-uk-says-philip-hammond-tv-gaffe
Specification References Below:-
Edexcel spec reference 2.1.3 – d) The causes of unemployment
AQA spec reference 3.2.3.2 – Employment and unemployment
OCR spec reference Page 18 – Unemployment