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Hello,

I'm trying to specify a statespace model and estimate it.
However, it keeps saying that the matrix is near singular.

I'm only using two variables (P in the signal equation which is based on nairu, which is in turn based on the @state equation).

Any guidance would be appreciated

Using Eviews 9.5

Thanks,

Hello,

It looks like the initial conditions of the estimation happen to produce a singular matrix. Try initializing your coefficients to something other than 0.

Hi Matt,

Thanks for the suggestion. Unfortunately even after setting the initial conditions for the state space to nairu0 = 4.5, and nairusd0 = 1 i still get a near singular matrix without much else being said.

It's possible i've not set up the specification correctly, as i'm not sure what else is wrong here.

Any advice would be appreciated,

Thanks

Did you try setting the 'c' coefficients so something non-zero as well?

I only realised after i posted that you meant initialise the parameters, and not the state variable.

That's working now, thanks!