Unraveling the nexus between fiscal policy uncertainty, environmental taxation, and life expectancy

These results indicate that fiscal policy uncertainty can destabilize social security programs, housing support, and budgets, which consequently elevate poverty rates, adversely impact health, and possibly decline life expectancy. Moreover, when there is uncertainty in fiscal policy, governments can take advantage of this situation and introduce environmental taxes that provide the necessary funds to invest in the healthcare sector, encourage sustainable practices, and mitigate negative externalities. These results can significantly contribute to the public sector, environmental, and health economics fields and provide new research dimensions for academicians and policymakers.