Example1.mod: addition of an extra endogenous variable

[learning]

Hi,

I have tried adding one new variable into the example1.mod of standard Dynare distribution. I wanted to calculate investment. Thus, I have inserted a new variable, x. See attached example1_x.mod.

I found the numerical results on to be a bit strange. In comparison with example1.log, I found the moments, correlation and autocorrelation of simulated variables to be different? Is this due to the random shocks at the stochastic sim? Or am I missing something?

Also, how do I interpret the "inf" eignevalues in the check function.

Will appreciate advice.

Thanks so much, Learning