为什么我运行了这段代码出来的结果不对

是我发错地方了吗？为什么没人回啊

有大神指导我一下吗？为什么我的代码运行了都是NaN啊？

求解答

得出来的结果始终是这样的，看了很多做了修改但是一期的没问题，多期的就是算不出来
Configuring Dynare ...
[mex] Generalized QZ.
[mex] Sylvester equation solution.
[mex] Kronecker products.
[mex] Sparse kronecker products.
[mex] Local state space iteration (second order).
[mex] Bytecode evaluation.
[mex] k-order perturbation solver.
[mex] k-order solution simulation.
[mex] Quasi Monte-Carlo sequence (Sobol).
[mex] Markov Switching SBVAR.

Starting Dynare (version 4.4.3).
Starting preprocessing of the model file ...
Found 2 equation(s).
Evaluating expressions...done
Computing static model derivatives:
- order 1
Computing dynamic model derivatives:
- order 1
Processing outputs ...done
Preprocessing completed.
Starting MATLAB/Octave computing.


STEADY-STATE RESULTS:

Y                   100
pi                  2

MODEL SUMMARY

  Number of variables:         2
  Number of stochastic shocks: 1
  Number of state variables:   1
  Number of jumpers:           0
  Number of static variables:  1


MATRIX OF COVARIANCE OF EXOGENOUS SHOCKS

Variables       v   
v            0.000000

POLICY AND TRANSITION FUNCTIONS
                                      Y
Constant                  100.000000
pi(-1)                     -0.307692
v                           0.615385


MOMENTS OF SIMULATED VARIABLES

VARIABLE      MEAN    STD. DEV.   VARIANCE   SKEWNESS   KURTOSIS
Y          100.000000   0.000000   0.000000        NaN        NaN


CORRELATION OF SIMULATED VARIABLES

VARIABLE     Y  
Y            NaN


AUTOCORRELATION OF SIMULATED VARIABLES

VARIABLE     1     2     3     4     5  
Y            NaN   NaN   NaN   NaN   NaN
Total computing time : 0h00m01s