# Permanent Shock to a Parameter

**URL:** <https://forum.dynare.org/t/permanent-shock-to-a-parameter/3394>\
**Category:** Dynare help (legacy posts)\
**Created:** [20 September 2013 07:41 UTC](https://forum.dynare.org/t/permanent-shock-to-a-parameter/3394 "2013-09-20T07:41:52Z")\
**Posts on this page:** 1\
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**Author:** ![Daniel\_Bendel](https://forum.dynare.org/letter_avatar_proxy/v4/letter/d/ecc23a/32.png) [@Daniel\_Bendel](https://forum.dynare.org/u/Daniel_Bendel)\
**Post date:** [20 September 2013 07:41 UTC](https://forum.dynare.org/t/permanent-shock-to-a-parameter/3394/1 "2013-09-20T07:41:52Z")

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Hello everyone,

I have a model with a government, which setting taxes following a simple rule. These taxes have a steady state value. I now what to do the following exercise:

I want to simulate the reactions of the model if I permanently increase the steady state value of these taxes: Say, in period 1 to 10 it should have the old steady state tax value and thereafter a new higher steady state tax value.

How can I do it whit dynare??

Thank you all for your help!

Daniel

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