On tax multiplier and the elasticity of tax rate for national income

After a study in two types of tax multipliers, one can easily find that the national income adjusted by way of tax policies or the economic growth stimulated by decreasing tax is very limited in effect. On the contrary, the argument described above has provided a theoretical support to the governmental increase of tax, and even an evidential support to the idea of negating tax policies and economic growth depending on financial policies. In regard to economic growth, tax policy is a subsidiary policy at most.