Governments play important rules in practice o f medical insurance.Government funded medical insurance systems for the w hole people are av ailable in many developed countries.I n United States, which is dominated by market economy, medical insurance for the aged and poor is also provided.According to medical economics, medical service and insurance are special commodities.As a part of social security, both efficiency and equality should be considered. However, theories and practices have proved that government rule in this field did not work well, especially in those developing countries whose market economic system did no t w ell established.In reforms of many countries, integration of public and market mechanism is stressed to seek harmonious progress in efficiency and equality, cost control and quality of service.
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[4] 同1
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