Abstract
AbstractThis study presents an overlapping generations model to analyze the impact of population aging on fiscal policy and intergenerational fiscal burden. Aging populations incentivize governments to increase capital and labor income tax rates and the public debt‐to‐GDP ratio, consistent with OECD evidence. Our model‐based simulation for Japan and the United States (2000–2070) reveals that Japan will experience higher labor income tax rates, a greater public debt‐to‐GDP ratio, and a lower government expenditure‐to‐GDP ratio compared to the United States. From 2040 onward, Japan is predicted to surpass the United States in terms of the capital tax rate.
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