
Parameter: λ14 Identified
Algebraic Equations:
σ13σ23λ14-σ12σ33λ14+σ24σ33-σ23σ34
Instrumental Variable:
2 | {3}
Parameter: λ23 Identified
Algebraic Equations:
σ12λ23-σ13
Instrumental Variable:
1 | {}
Parameter: λ34 Identified
Algebraic Equations:
σ13σ23λ34-σ13σ24-σ12σ33λ34+σ12σ34
Parameter: ω11 Identified
Algebraic Equations:
-σ11+ω11
Parameter: ω12 Identified
Algebraic Equations:
-σ12+ω12
Parameter: ω14 Identified
Algebraic Equations:
-σ13σ14σ23+σ132σ24+σ12σ14σ33-σ11σ24σ33-σ12σ13σ34+σ11σ23σ34+σ13σ23ω14-σ12σ33ω14
Parameter: ω22 Identified
Algebraic Equations:
-σ22+ω22
Parameter: ω23 Identified
Algebraic Equations:
σ13σ22-σ12σ23+σ12ω23
Parameter: ω33 Identified
Algebraic Equations:
-σ132σ22+2σ12σ13σ23-σ122σ33+σ122ω33
Parameter: ω44 Identified
Algebraic Equations:
-2σ13σ14σ23σ24σ33+σ132σ242σ33+2σ12σ14σ24σ332-σ11σ242σ332+2σ13σ14σ232σ34-2σ12σ14σ23σ33σ34-2σ12σ13σ24σ33σ34+2σ11σ23σ24σ33σ34-σ11σ232σ342+σ122σ33σ342-σ132σ232σ44+2σ12σ13σ23σ33σ44-σ122σ332σ44+σ132σ232ω44-2σ12σ13σ23σ33ω44+σ122σ332ω44
Total Effect of X2 on X4: λ23λ34 Identified
Each Parameter Identified
Algebraic Equations:
σ13σ23λ14-σ12σ33λ14+σ24σ33-σ23σ34
Instrumental Variable:
2 | {3}
Parameter: λ23 Identified
Algebraic Equations:
σ12λ23-σ13
Instrumental Variable:
1 | {}
Parameter: λ34 Identified
Algebraic Equations:
σ13σ23λ34-σ13σ24-σ12σ33λ34+σ12σ34
Parameter: ω11 Identified
Algebraic Equations:
-σ11+ω11
Parameter: ω12 Identified
Algebraic Equations:
-σ12+ω12
Parameter: ω14 Identified
Algebraic Equations:
-σ13σ14σ23+σ132σ24+σ12σ14σ33-σ11σ24σ33-σ12σ13σ34+σ11σ23σ34+σ13σ23ω14-σ12σ33ω14
Parameter: ω22 Identified
Algebraic Equations:
-σ22+ω22
Parameter: ω23 Identified
Algebraic Equations:
σ13σ22-σ12σ23+σ12ω23
Parameter: ω33 Identified
Algebraic Equations:
-σ132σ22+2σ12σ13σ23-σ122σ33+σ122ω33
Parameter: ω44 Identified
Algebraic Equations:
-2σ13σ14σ23σ24σ33+σ132σ242σ33+2σ12σ14σ24σ332-σ11σ242σ332+2σ13σ14σ232σ34-2σ12σ14σ23σ33σ34-2σ12σ13σ24σ33σ34+2σ11σ23σ24σ33σ34-σ11σ232σ342+σ122σ33σ342-σ132σ232σ44+2σ12σ13σ23σ33σ44-σ122σ332σ44+σ132σ232ω44-2σ12σ13σ23σ33ω44+σ122σ332ω44
Total Effect of X2 on X4: λ23λ34 Identified
Each Parameter Identified