Rank condition

The rank condition is a necessary and sufficient condition for a set of simultaneous equations in an econometric system to allow identification of all its parameters from the estimated coefficients of the reduced form equations.wikipedia
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Parameter identification problem

identificationidentification problemidentified
The rank condition is a necessary and sufficient condition for a set of simultaneous equations in an econometric system to allow identification of all its parameters from the estimated coefficients of the reduced form equations.
The rank condition is a necessary and sufficient condition for identification.

Order condition

first order condition
* Order condition
However, a stronger argument is the rank condition which is both necessary and sufficient for identification.

Necessity and sufficiency

necessary conditionnecessary and sufficient conditionsufficient condition
The rank condition is a necessary and sufficient condition for a set of simultaneous equations in an econometric system to allow identification of all its parameters from the estimated coefficients of the reduced form equations.

System of equations

simultaneous equationssystems of equationssimultaneous equation
The rank condition is a necessary and sufficient condition for a set of simultaneous equations in an econometric system to allow identification of all its parameters from the estimated coefficients of the reduced form equations.

Econometrics

econometriceconometricianeconometric analysis
The rank condition is a necessary and sufficient condition for a set of simultaneous equations in an econometric system to allow identification of all its parameters from the estimated coefficients of the reduced form equations.

Parameter

parametersparametricargument
The rank condition is a necessary and sufficient condition for a set of simultaneous equations in an econometric system to allow identification of all its parameters from the estimated coefficients of the reduced form equations.

Reduced form

reduced-form
The rank condition is a necessary and sufficient condition for a set of simultaneous equations in an econometric system to allow identification of all its parameters from the estimated coefficients of the reduced form equations.

Matrix (mathematics)

matrixmatricesmatrix theory
The condition simply requires the matrix of all structural equations of the model to have full rank.

Rank (linear algebra)

rankcolumn rankfull rank
The condition simply requires the matrix of all structural equations of the model to have full rank.