Empirical analysis of the fuzzy system model of financial expenditure economic effect

Abstract

In order to analyze the effects of active fiscal policy implemented in China in the context of tax and fee reduction, this paper adopts a dynamic stochastic general equilibrium model with microeconomic foundations to study the economic effects of fiscal policy based on a comprehensive consideration of the previous literature. The empirical study based on Matlab software finds that: first, active fiscal policy has a boosting effect on the economy and can stimulate the level of output to rise in the short run; second, different fiscal policy instruments have different impact mechanisms on economic variables, and the impact paths of government consumption spending and investment spending are completely inconsistent; third, the economic effects of government tax cut policies are better than government spending policies, and structural tax cut policy is softer than universal tax cuts; fourth, expansionary government investment spending has the most significant effect on output stimulation and has a very long-term impact on output level. Through the above model analysis, this paper argues that fiscal policy should play a greater role in supporting industrial restructuring, giving full play to the long-term advantages of the interest rate effect on the basis of satisfying society’s short-term needs and pursuing prosperous economic development, increasing investment in public resource areas, deepening industrial structural reforms, offsetting negative supply shocks brought by trade frictions and cross-border investment, raising long-term output levels and increasing employment opportunities.