如何评价政府公共支出规模及其变化趋势,政府公共支出的合理规模是什么,如何确定,是国内外学者关注的论题,综合各类文献资料,这一领域的研究主要集中在以下几方面。一、外国关于政府支出最优规模的理论研究1.关于政府公共支出规模增长的原因分析瓦格纳(Wanger)的政府活动扩张论 How to evaluate the scale and trend of government public expenditure, what is the reasonable scale of government public expenditure, and how to determine it are the topics that domestic and foreign scholars pay close attention to, and synthesize all kinds of documents and materials. The research in this field mainly focuses on the following aspects. First, the foreign theory on the optimal size of government spending 1. On the reasons for the increase in the size of government spending analysis Wagner (Wanger) expansion of government activity