在“效率优先,兼顾公平”原则中,由于公平与效率不具有兼容性,因而它既不能有效地促进效率的提高,又难以推进公平的发展。市场经济的本质是自由、平等和等价交换,市场在本质上既可以促进效率的提高,也能够维护各主体间的公平。市场公平只是社会公平中的一个方面或一个局部,社会公平涵盖市场公平。 In the principle of “giving priority to efficiency and balancing fairness”, since equity and efficiency are not compatible, they can neither effectively promote efficiency improvement nor promote equitable development. The essence of the market economy is freedom, equality and equal exchange. The market can both promote the improvement of efficiency and the fairness among all the parties in essence. Market fairness is only one aspect or a part of social fairness, and social fairness covers market fairness.