公平有起点公平和结果公平 ,按生产要素分配不论从起点上还是从结果上都能体现社会公平分配。在按生产要素分配的制度中 ,社会公平的实现条件就是各要素的价格与其边际物质产品的比值相等 ,按生产要素分配可以从不同要素所有者之间和同一要素的不同投入者之间两个层面上实现公平分配 Equity has the starting point of fairness and fairness of the outcome. Distribution according to factors of production can reflect the fair distribution of society both from the starting point and from the result. In the system of distribution according to the factors of production, the realization of social equity is that the price of each factor is equal to the ratio of its marginal material products, and the distribution of factors of production can vary from two different owners of different elements and two different actors of the same factor Level to achieve fair distribution