# Transition path shake

**URL:** <https://forum.dynare.org/t/transition-path-shake/25865>\
**Category:** Perfect foresight simulations\
**Created:** [4 June 2024 01:33 UTC](https://forum.dynare.org/t/transition-path-shake/25865 "2024-06-04T01:33:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![JackW](https://forum.dynare.org/letter_avatar_proxy/v4/letter/j/67e7ee/32.png) [@JackW](https://forum.dynare.org/u/JackW)\
**Post date:** [4 June 2024 01:33 UTC](https://forum.dynare.org/t/transition-path-shake/25865/1 "2024-06-04T01:33:34Z")

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I want to solve transition path from initial steady state to another, which is a result of a deterministic parameter change. Should I use “perfect foresight solver” to implement so a transition?

However, when I doing so in Dynare, the transition path shakes a lot around initial steady state, up and down for a few periods. I think it should be a smooth transition path. What is the typical reasons for that? Maybe my model’s timing is wrong?

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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:** [4 June 2024 11:02 UTC](https://forum.dynare.org/t/transition-path-shake/25865/2 "2024-06-04T11:02:30Z")

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1. Yes, such a transition is usually done using the `perfect foresight solver`.
2. A wiggly transition path is often indeed caused by timing problem. But without the files it is hard to tell.