The main purpose of establishing a social security system is to better reflect the principle of fairness  However, there is a contradiction between fairness and efficiency, and fairness can only be relative  Especially for a developing country like China, the level of economic development is still relatively low  Developing productivity and improving efficiency should be put in the first place
Only when productivity and production efficiency are improved, can social fairness be better realized
Productivity determines the realization of the principle of social fairness.