两部门的均衡条件: AD= AS AD=C+ =C+ AS=Y=Yd=C+s③ 2009-3-9中宏(7) 《中宏》讲义,张延著。版权所有2009-3-9 中宏（7） 《中宏》讲义，张延著。版权所有 7 • 两部门的均衡条件： 两部门的均衡条件： • AD = AS AD = AS ① • AD = C + I AD = C + I计 = C + Io o ② • AS = Y = Yd = C + S AS = Y = Yd = C + S ③