Fiscal Policy in a New Keynesian Overlapping Generations Model of a Small Open Economy
在小型开放经济的新凯恩斯模型中引入非贸易品、政府支出偏向和重叠世代结构，分析财政扩张对产出、消费和汇率的影响。
This paper introduces three features into an otherwise standard model of “New Open Economy Macroeconomics” of a small open economy, and analyzes effects of a fiscal expansion. Those three features are: (1) Presence of non-tradable goods, (2) Biases toward domestically produced goods, especially non-tradable goods, in government expenditure, and (3) an overlapping generations (OLG) structure a la Blanchard (1985), Yaari (1965), and, more closely related, Ganelli (2005). We show that biases toward non-tradable goods in fiscal spending makes large differences in the effects of a fiscal expansion on output. We also show that, in the presence of the OLG structure, an increase in public spending causes consumption to rise and the exchange rate to appreciate at the same time, under some reasonable parameter settings.