transition and measurement equation

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transition and measurement equation

Postby rossana » Mon Feb 12, 2007 4:45 pm

Dear Michel,
I am trying to build a state transition and measurement equation from the decision rules that DYNARE produces. I saw that the transition equation can be build giving the command kalman_transition_matrix(dr_)after stoch_simul. But what about the measurement equation?
Many thanks!
R.
rossana
 

Postby MichelJuillard » Thu Feb 15, 2007 8:25 am

Dear Rossana,

the measurement equation is trivial:

y^*_t = Z*yhat_t + ybar^* + trend + measurement error

y^*t are the observed variables
ybar_t are the difference to the steady state obtained from the transition equation
Z is a selection matrix (which variables are observed)
ybar^* is the steady state for the observed variables
trend is the deterministic trend for the observed variables

Best

Michel
MichelJuillard
 
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