The paper's first and foundational question is that the possibility and necessity about the complementarities between Medical aid and medical charities. The paper argues that Medical aid leans to social value and has its' own institutional system, it is the significant part of the social security in China and satisfy the basic elementary medical needs. While, medical charities leans to humanism and has no institutional system, it is the complementary part of the medical security and c satisfy the over-elementary medical needs. Meanwhlie the charities make a tremendous difference in financing and serving. The superiority between the Medical aid and medical charities make a wonderful system to afford the the possibility and necessity about the combination between them.The paper mostly discussing the core and structure of the system combination. The author thinks the combination between them is based on the commonness and difference which make the complementarities between them come true, and the complementarities are the real core of the combination which are structural. From the static state the relation represents principal or complementary part, basic or over-basic security, rigid or flexible form. From the dynamic state the relation of complementarities isn't fixed and is with the chage of social development.Thirdly, the paper discussed the econometric relation of the model about the combination, especially the financing. Through researching the factors influencing the medical demand of poor people, the paper works out the gap between supplies and demands, also estimates the sum ofmoney which medical charities can provide. |