Solving nonlinear rational expectations models by eigenvalue-eigenvector decompositions

We provide a summarized presentation of solution methods for rational expectations models, based on eigenvalue/eigenvector decompositions. These methods solve systems of stochastic linear difference equations by relying on the use of stability conditions derived from the eigenvectors associated to u...

Descripción completa

Detalles Bibliográficos
Autores: Novales Cinca, Alfonso Santiago, Domínguez Irastorza, Emilio, Pérez, Javier, Ruiz Andújar, Jesús
Tipo de recurso: informe técnico
Fecha de publicación:1998
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/64209
Acceso en línea:https://hdl.handle.net/20.500.14352/64209
Access Level:acceso abierto
Palabra clave:Eigenvalue-eigenvector decompositions
Numerical solutions
Rational expectations.
Procesos estocásticos
1208.08 Procesos Estocásticos
Descripción
Sumario:We provide a summarized presentation of solution methods for rational expectations models, based on eigenvalue/eigenvector decompositions. These methods solve systems of stochastic linear difference equations by relying on the use of stability conditions derived from the eigenvectors associated to unstable eigenvalues of the coefficient matrices in the system. For nonlinear models, a linear approximation must be obtained, and the stability conditions are approximate, This is however, the only source of approximation error, since the nonlinear structure of the original model is used to produce the numerical solution. After applying the method to a baseline stochastic growth model, we explain how it can be used: i) to salve some identification problems that may arise in standard growth models, and ii) to solve endogenous growth models.