This is a non-economist's question.
As a philosophy teacher ( in a french high school) , I have to study the theme of " labour" in class. I'm looking for factual data in order to assess the contemporary validity of some philosophical theories regarding the employee/ enterprise relation.
I suppose there is no single answer to the question : how much average value does 1 working hour produce?
Are there reliable statistics dealing with this subject?
Either statistics by country, or by enterprise, or by social category/profession?
Has also the profit generated by 1 working hour been studied?
Has the historical evolution of this profit through time been investigated?