Three Questions on the Theory of Labor Value

This paper studies three questions the theory of on labor value.First,with development of production,there have been three forms for human labor:material labor,service labor,and intellectual labor. Second,along with the development of labor forms,the theory of labor value has deepened in its implication and has interpreted various labors which create value.Third,the paper gives an objective appraisal to the society labor theory of value and points out its error.