中文摘要：

依据政府规模的规范性理论的基本框架，比较分析近年来国外关于政府规模的经济增长效应、社会福利效应、政府最优规模以及公共支出效应与政府效率之间关系的大量文献，研究结果表明：不同国家的经验数据在检验政府行为是否为生产性行为方面显示出不同的结果；政府规模的社会经济福利效应存在“阿米效应”；不同国家政府规模与社会福利效应存在较大差别；政府规模的社会经济福利效应的大小依赖于政府效率，因此提高政府效率是提高政府公共支出的社会经济福利效应的关键。

英文摘要：

According to the basic framework of the normative theory of government size,many literatures,which are the on the economic and social welfare effects of government size,the optimal government size and the relationship be- tween public expenditure effects and government efficiency, have been learned and analyzed.The study shows that the empirical tests of data from different countries on whether government activities are productive give different re- sults; there are the ＂Armey Effects＂ in the social and economic welfare effects of government size, and great dispari- ties in the social welfare effects of government size in different countries; the effects of government size on the social welfares depend on the government efficiency, thus to promote government efficiency is a key to enlarge the social and economic effeets of the public expenditures.