关键词: 外部性, 信息不对称, 跨界公共事务, 支出偏好

Abstract: This paper theoretically analyzes that the local governments in China not only have the bias of productive expenditure，but also have a preference in the expenditure of crossborder and local public goods investment because of externality and information asymmetry Under the budget principle of “living within its means”，this paper uses the panel data of 31 provincial governments in China from 2010 to 2019 to empirically analyze the impact of the growth of local government general public budget revenue on the growth of four types of fiscal expenditure scale，namely，crossborder expenditure on peoples livelihood，crossborder productive expenditure，regional expenditure on peoples livelihood and regional productive expenditure The results show that at the national level，the increase of the growth rate of general public budget revenue can make the crossborder productive expenditure increase the most Besides，the more competitive the government is，the more attention the local government attaches to externality，so the more funds the local government will spend on regional government affairs From the results of different types of fiscal revenue on fiscal expenditure behavior，only indirect tax revenue can have a significant impact on fiscal expenditure of the three types of regions at the same time In order to improve the quality of public services，this paper puts forward corresponding policy suggestions according to the research conclusions

Key words: externality, information asymmetry, crossborder public affairs, expenditure preference