Parameter: λ12 Identified

Algebraic Equations:

σ11λ1212

Single Door Criterion:

{1} ⊥ {2,3} | {}
{1} ⊥ {2} | {3}

Parameter: λ14

Parameter: λ24

Parameter: λ34

Parameter: ω11 Identified

Algebraic Equations:

1111

Parameter: ω22 Identified

Algebraic Equations:

σ12211σ2211ω22

Parameter: ω23 Identified

Algebraic Equations:

2323

Parameter: ω33 Identified

Algebraic Equations:

3333

Parameter: ω34

Parameter: ω44

Total Effect of X1 on X4: λ12λ2414 Identified

Algebraic Equations:

σ11λ12λ2411λ1414

Back Door Criterion:

{1} ⊥ {2,3,4} | {}
{1} ⊥ {2,4} | {3}

Path-specific Effect of X1 on X4: λ12λ24

Vanishing Ideal


Constraint Set:

σ13

All constraints are determinantal

Trek-separation:

{1} ⊥ {3} | ({},{})