公共资本性支出、经常性支出与内生经济增长

Public Capital Spending,Current Spending and Endogenous Economic Growth

本文基于一个含有两类不同产出能力的公共商品的内生增长模型,通过数理分析得出在市场经济条件下最优公共支出结构的依据是公共商品各自的产出弹性。进而采用面板数据模型对13个发达国家1972~2009年的公共支出实践进行了实证研究。实证结果表明,经常性（资本性）支出对经济增长有正（负）效应。该研究结论为平衡预算下的公共支出结构决策提供了参考依据。

Based on an endogenous growth model including two different productivity public goods,the paper characterizes the optimal fiscal expenditure,which is based on the public goods' productivity elasticity respectively.The paper studies empirically a panel data from 1972 to 2009 about 13 developed countries.The result shows current(capital) fiscal spending has a positive(negative) effect on the economic growth.The result provides a reference to the fiscal expenditure policy under balanced public budget.