Parameter: λ12 Identified

Algebraic Equations:

σ11λ1212

Single Door Criterion:

{1} ⊥ {2} | {}

Parameter: λ13 Identified

Algebraic Equations:

σ122λ1311σ22λ1313σ2212σ23

Single Door Criterion:

{1} ⊥ {3} | {2}

Parameter: λ23 Identified

Algebraic Equations:

σ122λ2312σ1311σ22λ2311σ23

Single Door Criterion:

{2} ⊥ {3} | {1}

Parameter: λ34 Identified

Algebraic Equations:

σ132σ22λ3413σ14σ22-2σ12σ13σ23λ3412σ14σ2311σ232λ3412σ13σ2411σ23σ24122σ33λ3411σ22σ33λ34122σ3411σ22σ34

Single Door Criterion:

{3} ⊥ {4} | {1,2}

Parameter: ω11 Identified

Algebraic Equations:

1111

Parameter: ω14 Identified

Algebraic Equations:

σ12σ13σ14σ2311σ14σ23212σ132σ2411σ13σ23σ24122σ14σ3311σ14σ22σ33122σ13σ3411σ13σ22σ34132σ22ω14-2σ12σ13σ23ω1411σ232ω14122σ33ω1411σ22σ33ω14

Parameter: ω22 Identified

Algebraic Equations:

σ12211σ2211ω22

Parameter: ω24 Identified

Algebraic Equations:

122σ13σ14σ2311σ13σ14σ22σ23122σ132σ2411σ132σ22σ24123σ14σ3311σ12σ14σ22σ3311σ122σ24σ33112σ22σ24σ33123σ13σ3411σ12σ13σ22σ3411σ122σ23σ34112σ22σ23σ3411σ132σ22ω24-2σ11σ12σ13σ23ω24112σ232ω2411σ122σ33ω24112σ22σ33ω24

Parameter: ω33 Identified

Algebraic Equations:

132σ22+2σ12σ13σ2311σ232122σ3311σ22σ33122ω3311σ22ω33

Parameter: ω44 Identified

Algebraic Equations:

132σ142σ222σ33+2σ12σ13σ142σ22σ23σ33122σ142σ232σ33+2σ12σ132σ14σ22σ24σ33-2σ122σ13σ14σ23σ24σ33-2σ11σ13σ14σ22σ23σ24σ33+2σ11σ12σ14σ232σ24σ33122σ132σ242σ33+2σ11σ12σ13σ23σ242σ33112σ232σ242σ33+2σ133σ14σ222σ34-6σ12σ132σ14σ22σ23σ34+4σ122σ13σ14σ232σ34+2σ11σ13σ14σ22σ232σ34-2σ11σ12σ14σ233σ34-2σ12σ133σ22σ24σ34+4σ122σ132σ23σ24σ34+2σ11σ132σ22σ23σ24σ34-6σ11σ12σ13σ232σ24σ34+2σ112σ233σ24σ34+2σ122σ132σ22σ342-2σ11σ132σ222σ342-4σ123σ13σ23σ342+4σ11σ12σ13σ22σ23σ342+2σ11σ122σ232σ342-2σ112σ22σ232σ342124σ33σ342-2σ11σ122σ22σ33σ342112σ222σ33σ342134σ222σ44+4σ12σ133σ22σ23σ44-4σ122σ132σ232σ44-2σ11σ132σ22σ232σ44+4σ11σ12σ13σ233σ44112σ234σ44-2σ122σ132σ22σ33σ44+2σ11σ132σ222σ33σ44+4σ123σ13σ23σ33σ44-4σ11σ12σ13σ22σ23σ33σ44-2σ11σ122σ232σ33σ44+2σ112σ22σ232σ33σ44124σ332σ44+2σ11σ122σ22σ332σ44112σ222σ332σ44134σ222ω44-4σ12σ133σ22σ23ω44+4σ122σ132σ232ω44+2σ11σ132σ22σ232ω44-4σ11σ12σ13σ233ω44112σ234ω44+2σ122σ132σ22σ33ω44-2σ11σ132σ222σ33ω44-4σ123σ13σ23σ33ω44+4σ11σ12σ13σ22σ23σ33ω44+2σ11σ122σ232σ33ω44-2σ112σ22σ232σ33ω44124σ332ω44-2σ11σ122σ22σ332ω44112σ222σ332ω44

Total Effect of X1 on X3: λ12λ2313 Identified

Each Parameter Identified

Back Door Criterion:


{1} ⊥ {2,3} | {}

Total Effect of X1 on X4: λ12λ23λ3413λ34 Identified

Each Parameter Identified

Total Effect of X2 on X4: λ23λ34 Identified

Each Parameter Identified

Vanishing Ideal

Zero Vanishing Ideal