What is meant by identification in a simultaneous equation model? Check the identification status of the equations in the following model:

Demand function: 

Supply function:

Identification in a simultaneous equation model refers to the ability to uniquely determine the structural parameters of an equation from the available data. In econometrics, when dealing with simultaneous equations, each equation represents a different behavioral or technical relationship among economic variables. However, since multiple equations share endogenous variables, simple estimation methods like Ordinary Least Squares (OLS) may not provide consistent estimates due to simultaneity bias. Thus, identification is crucial for proper estimation using methods like Two-Stage Least Squares (2SLS) or Instrumental Variables (IV).  

To check the identification status of an equation in a simultaneous equation model, econometricians use the order condition and rank condition.  

### Order Condition of Identification  
The order condition provides a necessary (but not sufficient) criterion for identification. It states that an equation in a system is:  

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