模型
表达式
约束条件
1. LC (1992)
log i t ( q x , t ) = α x + β x κ t + ε x , t
∑ β x = 1 , ∑ κ t = 0
2. RH (2006)
log i t ( q x , t ) = α x + β x ( 1 ) κ t + β x ( 2 ) γ t − x + ε x , t
∑ β x ( 1 ) = 1 , ∑ β x ( 2 ) = 1 , ∑ κ t = 0 , ∑ γ t − x = 0
3. APC (2006)
log i t ( q x , t ) = α x + κ t + γ t − x + ε x , t
∑ κ t = 0 , ∑ γ t − x = 0 , ∑ ( t − x ) γ t − x = 0
4. CBD (2006)
log i t ( q x , t ) = κ t ( 1 ) + κ t ( 2 ) ( x − x ¯ ) + ε x , t
无
5. PLAT (2009)
log i t ( q x , t ) = α x + κ t ( 1 ) + κ t ( 2 ) ( x ¯ − x ) + κ t ( 3 ) ( x ¯ − x ) + + γ t − x + ε x , t
∑ κ t ( 3 ) = 0 , ∑ γ t − x = 0 , ∑ ( t − x ) γ t − x = 0