# Blanchard & Kahn conditions indeterminacy area

**URL:** https://forum.dynare.org/t/blanchard-kahn-conditions-indeterminacy-area/25220
**Category:** Stochastic simulations
**Created:** [21 February 2024 16:14 UTC](https://forum.dynare.org/t/blanchard-kahn-conditions-indeterminacy-area/25220 "2024-02-21T16:14:34Z")
**Posts on this page:** 4
**Page:** 1

<div class="post-metadata">

### Author: ![asprilqjs](https://forum.dynare.org/letter_avatar_proxy/v4/letter/a/b9bd4f/32.png) [@asprilqjs](https://forum.dynare.org/u/asprilqjs)
#### Post date: [21 February 2024 16:14 UTC](https://forum.dynare.org/t/blanchard-kahn-conditions-indeterminacy-area/25220/1 "2024-02-21T16:14:35Z")

</div>

![1708531879991](https://forum.dynare.org/uploads/default/original/3X/a/c/ac347a9cc73d2502aa568e1bdd5aa707263e3877.png)  
I would like to ask how, in Dynare, one can generate a similar figure that examines the regions where the coefficients of monetary policy lead to a unique solution or indeterminacy in the model, and if there are any examples of code for this purpose?

---

<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: [21 February 2024 17:48 UTC](https://forum.dynare.org/t/blanchard-kahn-conditions-indeterminacy-area/25220/2 "2024-02-21T17:48:19Z")

</div>

See

> [@Draw determinacy boundary](https://forum.dynare.org/t/draw-determinacy-boundary/6061/3):
>
> The quickest way is to loop over resol An example mapping the determinacy region is for Figure 11 at [github.com/JohannesPfeifer/DSGE\_mod/blob/master/Ascari\_Sbordone\_2014/Ascari\_Sbordone\_2014.mod](https://github.com/JohannesPfeifer/DSGE_mod/blob/master/Ascari_Sbordone_2014/Ascari_Sbordone_2014.mod)

---

<div class="post-metadata">

### Author: ![asprilqjs](https://forum.dynare.org/letter_avatar_proxy/v4/letter/a/b9bd4f/32.png) [@asprilqjs](https://forum.dynare.org/u/asprilqjs)
#### Post date: [18 March 2024 02:43 UTC](https://forum.dynare.org/t/blanchard-kahn-conditions-indeterminacy-area/25220/3 "2024-03-18T02:43:11Z")

</div>

It seems that I need to be able to obtain a feasible result before I can proceed with the plotting of the determinacy region. Is that correct?

---

<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: [18 March 2024 08:02 UTC](https://forum.dynare.org/t/blanchard-kahn-conditions-indeterminacy-area/25220/4 "2024-03-18T08:02:38Z")

</div>

If your model still has a fundamental issue with the Blanchard-Kahn conditions, then plotting the determinacy region will not help.