La bataille mondiale de l'acier (Broché)

Wages, Prices and Profit had the same aim. Originally it was a document read by Marx in the course of two sessions of the General Council of the International Worgingmen's Association, better known today as First International. In these addresses, Marx answered the questions raised by John Weston about the impact of the increase in wages on the workers' situation and the position of the trade unions in wage battles.
The " novelties " the leaders of the First International had the chance to know in preview were none other than the discovery ot the " value of labour " or, more precisely, of the fact that it is impossible to determine this value without introducing the concept of " labour-power ". Wages, Price and Profit thus constitutes the first scientific explanation ot the mechanism of capitalist exploitation.