完全雇用実現のための財政政策について: 世代重複モデルによる理論的分析 (On the Fiscal Policy for Full Employment: Theoretical Analysis With an Overlapping Generations Model)

2021 ◽  
Author(s):  
Yasuhito Tanaka

2020 ◽  
pp. 1-31
Author(s):  
Xavier Raurich ◽  
Thomas Seegmuller

The aim of this paper is to study the role of the distribution of income by age group on the existence of speculative bubbles. A crucial question is whether this distribution may promote a bubble associated to a larger level of capital, that is a productive bubble. We address these issues in an overlapping generations model where agents live three periods and productive investment done in the first period of life is an illiquid investment whose return occurs in the following two periods. A bubble is a liquid speculative investment that facilitates intertemporal consumption smoothing. We show that the distribution of income by age group determines both the existence and the effect of bubbles on aggregate production. We also show that fiscal policy, by changing the distribution of income, may facilitate or prevent the existence of bubbles and may also modify the effect that bubbles have on aggregate production.



2021 ◽  
pp. 2150018
Author(s):  
Yasuhito Tanaka

This study aimed to provide a game-theoretic interpretation of the analyses of involuntary unemployment by deficiency of aggregate demand and fiscal policy to achieve full employment using an overlapping generations model. We showed that involuntary unemployment is in a Nash equilibrium of a game with a firm and consumers. Moreover, we showed that full employment can be achieved through fiscal policies that create budget deficits in recessionary conditions with involuntary unemployment. Once full employment is achieved, it can be sustained without a budget deficit.







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