Hi all!!!

I am trying to find the path in a deterministic Ramsey planner problem. The steady state exists for the parameters that I use (I have found the steady state in maple which change for different values of the parameters). The following message appears:

There are 8 eigenvalue(s) larger than 1 in modulus

for 10 forward-looking variable(s)

The rank conditions ISN’T verified!

The results are:

Residuals of the static equations:

Equation number 1 : 0

Equation number 2 : 0

Equation number 3 : 0

Equation number 4 : 0

Equation number 5 : 0

Equation number 6 : 0

Equation number 7 : 0

Equation number 8 : 0

Equation number 9 : 0

Equation number 10 : 0

Equation number 11 : 0

Equation number 12 : 0

STEADY-STATE RESULTS:

n 0.595731

c 0.468489

k 1.7547

Q 1.57442

g 0.206926

taul 0.273417

tauk 0.181818

chi 1.76807

lambda 0.0339384

zeta 1.69365

psi 0.0445827

xi 0.094949

EIGENVALUES:

Modulus Real Imaginary

```
0.00182 0.00182 0
0.8157 0.8157 0
0.9059 0.9059 0
1.138 1.138 0
1.272 1.272 0
117.1 117.1 0
Inf Inf 0
Inf Inf 0
Inf Inf 0
Inf Inf 0
Inf Inf 0
```

There are 8 eigenvalue(s) larger than 1 in modulus

for 10 forward-looking variable(s)

The rank conditions ISN’T verified!

MODEL SIMULATION :

1 - err = 12.7636

Time of iteration :0.298

2 - err = 9.5394

Time of iteration :0.618

3 - err = 4.3254

Time of iteration :0.661

4 - err = 20.5859

Time of iteration :0.458

5 - err = 18.4603

Time of iteration :0.429

6 - err = 37.2857

Time of iteration :0.4

7 - err = 37.1175

Time of iteration :0.404

8 - err = 16.642

Time of iteration :0.481

9 - err = 16.4293

Time of iteration :0.394

10 - err = 212.125

Time of iteration :0.392

```
Total time of simulation :4.6
```

WARNING : maximum number of iterations is reached (modify options_.maxit_).

Total computing time : 0h00m09s

I have done everything suggested in similar posts, but nothing seems to work. Any answers, comments, clues will be kindly seen!!!

I attach the mod file.

example4.mod (3.5 KB)