悬赏 1 个论坛币 未解决
写成状态空间模型形式:
param c(1) -1.85 c(2) -4.59
@signal log(steelsa) = c(1)+sh1*log(investjsa(-5))+sh2*log(investfsa(-4))
+ sh3*log(exportsa(-7))+ [var = exp(c(2))]
@state sh1 = sh1(-1)
@state sh2 = sh2(-1)
@state sh3 = sh3(-1)
求助模型中的c(1) c(2) 是什么意思?还有下面的-5,-4,-7 是什么意思?