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Multiple Equation Analysis: Models and Implementation in EViews

Multiple Equation Analysis via the Model object in EViews is a highly powerful tool for macroeconomic forecasting and simulation. It allows researchers to seamlessly combine estimated single equations, multivariate Systems, VAR models, and mathematical identities into a unified overarching structure. The most prominent feature of the Model object is its ability to perform simultaneous simulations and evaluate policy impacts through counterfactual Scenarios. To build a model in EViews, you can create a blank one via Object - New Object... Model, or simply highlight multiple estimation objects, right-click, and select Open as Model Alternatively, using the Proc - Make Model button from an equation's window will generate it instantly. Users can easily drag and drop additional equations or manually type accounting identities (e.g., Y = C + I + G) directly into the Model's text view. To execute a simulation, click the Solve button on the toolbar. The comprehensive dialog allows you to choose between Deterministic simulations or Stochastic simulations that incorporate random error, as well as Static or multi-step Dynamic forecasting algorithms. Furthermore, the View - Scenarios... menu empowers you to override exogenous variables with hypothetical data to analyze systemic shocks. The simulated solution series are automatically saved in the workfile with unique identifying aliases (such as _0 for the Baseline scenario) for easy comparison.