Parameter: λ12 Identified

Algebraic Equations:

σ11λ1212

Single Door Criterion:

{1} ⊥ {2} | {}

Parameter: λ23 Identified

Algebraic Equations:

σ122λ2312σ1311σ22λ2311σ23

Single Door Criterion:

{2} ⊥ {3} | {1}

Parameter: λ34 Identified

Algebraic Equations:

σ12σ13σ23λ3411σ232λ3412σ13σ2411σ23σ24122σ33λ3411σ22σ33λ34122σ3411σ22σ34

Parameter: ω11 Identified

Algebraic Equations:

1111

Parameter: ω13 Identified

Algebraic Equations:

σ11σ13σ2211σ12σ23122ω1311σ22ω13

Parameter: ω14 Identified

Algebraic Equations:

12σ13σ14σ2311σ14σ23212σ132σ2411σ13σ23σ24122σ14σ3311σ14σ22σ33122σ13σ3411σ13σ22σ3412σ13σ23ω1411σ232ω14122σ33ω1411σ22σ33ω14

Parameter: ω22 Identified

Algebraic Equations:

σ12211σ2211ω22

Parameter: ω24 Identified

Algebraic Equations:

σ122σ13σ14σ2311σ12σ14σ232122σ132σ2411σ12σ13σ23σ24123σ14σ3311σ12σ14σ22σ3311σ122σ24σ33112σ22σ24σ33123σ13σ3411σ12σ13σ22σ3411σ122σ23σ34112σ22σ23σ3411σ12σ13σ23ω24112σ232ω2411σ122σ33ω24112σ22σ33ω24

Parameter: ω33 Identified

Algebraic Equations:

122σ132σ22+2σ123σ13σ23-2σ11σ122σ232112σ22σ232124σ33+2σ11σ122σ22σ33112σ222σ33124ω33-2σ11σ122σ22ω33112σ222ω33

Parameter: ω44 Identified

Algebraic Equations:

122σ132σ242σ33+2σ11σ12σ13σ23σ242σ33112σ232σ242σ33+2σ122σ132σ23σ24σ34-4σ11σ12σ13σ232σ24σ34+2σ112σ233σ24σ34-2σ123σ13σ23σ342+2σ11σ12σ13σ22σ23σ342+2σ11σ122σ232σ342-2σ112σ22σ232σ342124σ33σ342-2σ11σ122σ22σ33σ342112σ222σ33σ342122σ132σ232σ44+2σ11σ12σ13σ233σ44112σ234σ44+2σ123σ13σ23σ33σ44-2σ11σ12σ13σ22σ23σ33σ44-2σ11σ122σ232σ33σ44+2σ112σ22σ232σ33σ44124σ332σ44+2σ11σ122σ22σ332σ44112σ222σ332σ44122σ132σ232ω44-2σ11σ12σ13σ233ω44112σ234ω44-2σ123σ13σ23σ33ω44+2σ11σ12σ13σ22σ23σ33ω44+2σ11σ122σ232σ33ω44-2σ112σ22σ232σ33ω44124σ332ω44-2σ11σ122σ22σ332ω44112σ222σ332ω44

Total Effect of X1 on X3: λ12λ23 Identified

Each Parameter Identified

Total Effect of X1 on X4: λ12λ23λ34 Identified

Each Parameter Identified

Total Effect of X2 on X4: λ23λ34 Identified

Each Parameter Identified

Vanishing Ideal

Zero Vanishing Ideal