dY / dT0 = -C1 / (1-C1(1-t)) = -0.8 / (1- 0.8*0.8) = -0.8 / 0.36 = -2.222
乘數為 -b / 1-b+bt :
-0.8 / 1-0.8+0.8*0.2 = -2.222
AE=360+0.64Y
乘數=-0.8/(1-0.64)=-2.222
為什麼定額稅乘數分母要加ct,那不是誘發性租稅嗎?