# Addressing Eigenvalue Issues in Non-Linear vs. Linear Model Implementation in Dynare

**URL:** <https://forum.dynare.org/t/addressing-eigenvalue-issues-in-non-linear-vs-linear-model-implementation-in-dynare/26703>\
**Category:** General DSGE Modeling\
**Created:** [7 November 2024 18:25 UTC](https://forum.dynare.org/t/addressing-eigenvalue-issues-in-non-linear-vs-linear-model-implementation-in-dynare/26703 "2024-11-07T18:25:21Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![jpfeifer](https://forum.dynare.org/user_avatar/forum.dynare.org/jpfeifer/32/5044_2.png) [@jpfeifer](https://forum.dynare.org/u/jpfeifer)\
**Post date:** [7 November 2024 20:33 UTC](https://forum.dynare.org/t/addressing-eigenvalue-issues-in-non-linear-vs-linear-model-implementation-in-dynare/26703/2 "2024-11-07T20:33:14Z")

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See

> [@Determinacy graphs](https://forum.dynare.org/t/determinacy-graphs/26620/2):
>
> No, what you describe indicates that the linear and the nonlinear one approximated at first order are not identical. At least one of the two must contain a mistake.

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