# Steady state issues on multi-sector model

**URL:** <https://forum.dynare.org/t/steady-state-issues-on-multi-sector-model/19124>\
**Category:** Steady state\
**Created:** [19 October 2021 08:41 UTC](https://forum.dynare.org/t/steady-state-issues-on-multi-sector-model/19124 "2021-10-19T08:41:33Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![ComeP](https://forum.dynare.org/letter_avatar_proxy/v4/letter/c/a88e57/32.png) [@ComeP](https://forum.dynare.org/u/ComeP)\
**Post date:** [19 October 2021 08:41 UTC](https://forum.dynare.org/t/steady-state-issues-on-multi-sector-model/19124/1 "2021-10-19T08:41:33Z")

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Dear All,  
I’m trying to run a simple two-sector dsge model with Input-Output structure but I never manage to compute the steady state. Every time I change the parameters, a different type of problem appear in the command so I’m quite puzzled about the issue. I checked my equations many time but couldn’t find a mistake (which doesn’t mean there is not). Is the problem related to my model ? Here are the equation system and the mod.file.  
Thank you very much !

 ![Capture d’écran 2021-10-19 à 10.36.08](https://forum.dynare.org/uploads/default/original/2X/3/3cda13db5daba37f6ffda620b0675ba1b18c5067.png)  
[Multibis.log](https://forum.dynare.org/uploads/short-url/wvfY51m6J8wWwLCLGgg9h9lCiSl.log) (2.8 KB)  
[Multibis.m](https://forum.dynare.org/uploads/short-url/laoHfYJY5wvZSbHpUah6sVnK8nv.m) (10.6 KB)[Multibis.mod](https://forum.dynare.org/uploads/short-url/h3EzvdepzRZodDKFIvKsDX068zp.mod) (3.8 KB)

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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:** [19 October 2021 17:08 UTC](https://forum.dynare.org/t/steady-state-issues-on-multi-sector-model/19124/2 "2021-10-19T17:08:44Z")

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The multi\_ss.m is missing.

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**Author:** ![ComeP](https://forum.dynare.org/letter_avatar_proxy/v4/letter/c/a88e57/32.png) [@ComeP](https://forum.dynare.org/u/ComeP)\
**Post date:** [20 October 2021 07:04 UTC](https://forum.dynare.org/t/steady-state-issues-on-multi-sector-model/19124/3 "2021-10-20T07:04:31Z")

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Dear Professor,

Sure sorry for the miss. Here you can find it and the aggregate indices.

Thanks a lot !

 ![Capture d’écran 2021-10-20 à 09.02.49](https://forum.dynare.org/uploads/default/original/2X/b/b4f865d4de1289c1b39864284c67f98b55a7ba49.png)  
[Multi\_ss.m](https://forum.dynare.org/uploads/short-url/rieJlZxKXksrize7vgMcHMw54S1.m) (2.4 KB)

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<div class="post-metadata">

**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:** [20 October 2021 08:20 UTC](https://forum.dynare.org/t/steady-state-issues-on-multi-sector-model/19124/4 "2021-10-20T08:20:45Z")

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On my machine, the steady state is found, but the model exhibits singularity. Are you sure about the timing of capital? Usually, its predetermined.

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<div class="post-metadata">

**Author:** ![ComeP](https://forum.dynare.org/letter_avatar_proxy/v4/letter/c/a88e57/32.png) [@ComeP](https://forum.dynare.org/u/ComeP)\
**Post date:** [20 October 2021 08:45 UTC](https://forum.dynare.org/t/steady-state-issues-on-multi-sector-model/19124/5 "2021-10-20T08:45:01Z")

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Dear Professor,

You’re right, I changed the timing of capital but the same error message appears. [Multibis\_static.m](https://forum.dynare.org/uploads/short-url/iFO3ReCi77jVb12Nlw9jU7S0JVG.m) (7.7 KB)

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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:** [20 October 2021 09:04 UTC](https://forum.dynare.org/t/steady-state-issues-on-multi-sector-model/19124/6 "2021-10-20T09:04:26Z")

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You did not provide the mod-file

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<div class="post-metadata">

**Author:** ![ComeP](https://forum.dynare.org/letter_avatar_proxy/v4/letter/c/a88e57/32.png) [@ComeP](https://forum.dynare.org/u/ComeP)\
**Post date:** [20 October 2021 09:05 UTC](https://forum.dynare.org/t/steady-state-issues-on-multi-sector-model/19124/7 "2021-10-20T09:05:27Z")

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Sorry : [Multibis.mod](https://forum.dynare.org/uploads/short-url/nY3rQnspLZCeMGCSFTmA1RpbYtn.mod) (3.8 KB)

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<div class="post-metadata">

**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:** [20 October 2021 09:12 UTC](https://forum.dynare.org/t/steady-state-issues-on-multi-sector-model/19124/8 "2021-10-20T09:12:04Z")

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I am still not convinced by the timing. For example

```auto
	K_A = DELT*ALPHA_A*P_A(+1)*Y_A(+1)/(P_A-DELT*(1-DELTT)*P_A(+1));

```

looks strange.