# Colinear equations problems **URL:** \ **Category:** Dynare help (legacy posts)\ **Created:** [22 August 2016 09:30 UTC](https://forum.dynare.org/t/colinear-equations-problems/5728 "2016-08-22T09:30:12Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![aminapc](https://forum.dynare.org/letter_avatar_proxy/v4/letter/a/f07891/32.png) [@aminapc](https://forum.dynare.org/u/aminapc)\ **Post date:** [22 August 2016 09:30 UTC](https://forum.dynare.org/t/colinear-equations-problems/5728/1 "2016-08-22T09:30:12Z")
Dear professor jpfeifer: When we run the modeltwo.mod file in dynare, the error information is coming up with the following message: ……… model\_diagnostic: the Jacobian of the static model is singular there is 5 colinear relationships between the variables and the equations Relation 1 Colinear variables: C\_d C\_i C\_fd C\_md C\_fi C\_mi gama\_dc gama\_ic gama\_md gama\_fd gama\_fi gama\_mi gama\_estr k i Y\_oil Y\_Fd L\_f K\_f rer x si T t\_d y im fr Relation 2 Colinear variables: C\_d C\_fd C\_md gama\_dc gama\_md gama\_fd Relation 3 Colinear variables: C\_d C\_i C\_fd C\_md C\_fi C\_mi gama\_dc gama\_ic gama\_md gama\_fd gama\_fi gama\_mi gama\_estr k i Y\_oil Y\_Fd L\_f K\_f rer x si T t\_d y im fr Relation 4 Colinear variables: C\_d C\_i C\_fd C\_md C\_fi C\_mi gama\_dc gama\_ic gama\_md gama\_fd gama\_fi gama\_mi gama\_estr k i Y\_oil Y\_Fd L\_f K\_f rer x si T t\_d y im fr Relation 5 Colinear variables: C\_d C\_i C\_fd C\_md C\_fi C\_mi gama\_dc gama\_ic gama\_md gama\_fd gama\_fi gama\_mi gama\_estr k i Y\_oil Y\_Fd L\_f K\_f rer x si T t\_d y im fr Relation 1 Colinear equations Columns 1 through 18 ``` 2 4 6 8 10 12 13 14 15 16 18 19 20 21 27 32 33 34 ``` Columns 19 through 27 ``` 35 36 37 38 39 40 49 51 52 ``` Relation 2 Colinear equations Columns 1 through 18 ``` 2 4 6 8 10 12 13 14 15 16 18 19 20 21 27 32 33 34 ``` Columns 19 through 27 ``` 35 36 37 38 39 40 49 51 52 ``` Relation 3 Colinear equations Columns 1 through 18 ``` 2 4 6 8 10 12 13 14 15 16 18 19 20 21 27 32 33 34 ``` Columns 19 through 27 ``` 35 36 37 38 39 40 49 51 52 ``` Relation 4 Colinear equations Columns 1 through 18 ``` 2 4 6 8 10 12 13 14 15 16 18 19 20 21 27 32 33 34 ``` Columns 19 through 27 ``` 35 36 37 38 39 40 49 51 52 ``` Relation 5 Colinear equations Columns 1 through 18 ``` 2 4 6 8 10 12 13 14 15 16 18 19 20 21 27 32 33 34 ``` Columns 19 through 27 ``` 35 36 37 38 39 40 49 51 52 ``` The presence of a singularity problem typically indicates that there is one redundant equation entered in the model block, while another non-redundant equation is missing. The problem often derives from Walras Law. Error using print\_info (line 42) Blanchard Kahn conditions are not satisfied: no stable equilibrium Error in stoch\_simul (line 98) print\_info(info, options\_.noprint, options\_); Error in modeltwo (line 841) info = stoch\_simul(var\_list\_); Error in dynare (line 180) evalin(‘base’,fname) ; In generally, how do we to solve the Colinear equations problems? Thank you much for your help and support! The mod file as follows: [Modeltwo.mod](https://forum.dynare.org/uploads/default/original/2X/a/a6190bfc536ec1a3e9b9f645806e29e46ea96d95.mod) (10.7 KB) ---
**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:** [22 August 2016 09:55 UTC](https://forum.dynare.org/t/colinear-equations-problems/5728/2 "2016-08-22T09:55:20Z")
Just the usual generic advice: start with a simple® version of the model and see where the problem comes from. With a model that big, there is not much hope of debugging. ---
**Author:** ![aminapc](https://forum.dynare.org/letter_avatar_proxy/v4/letter/a/f07891/32.png) [@aminapc](https://forum.dynare.org/u/aminapc)\ **Post date:** [22 August 2016 18:55 UTC](https://forum.dynare.org/t/colinear-equations-problems/5728/3 "2016-08-22T18:55:02Z")
> [@jpfeifer](#): > > Just the usual generic advice: start with a simple(r) version of the model and see where the problem comes from. With a model that big, there is not much hope of debugging. Hi Prof. Pfeifer, Thank you so much for your reply. ---
**Author:** ![xuz](https://forum.dynare.org/letter_avatar_proxy/v4/letter/x/8e7dd6/32.png) [@xuz](https://forum.dynare.org/u/xuz)\ **Post date:** [23 August 2016 22:56 UTC](https://forum.dynare.org/t/colinear-equations-problems/5728/4 "2016-08-23T22:56:29Z")
Hi, my suggestion may goes into the wrong direction, but you might check the following: 1. The following endogenous variables aren’t present at the current period in the model: K\_f 2. Some of the collinearities may come from the existence of unit roots, which is treated by “model\_diagnostics” as an collinearity problem even your BK and rank conditions verified. eigenvalues could be found at: oo\_.dr.eigval