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Unusual Problem

PostPosted: Wed Dec 12, 2012 7:09 pm
by jpv1988
I'm trying to implement a model with exogenous bond-market segmentation. There are 3 types of agents who can buy only one kind of bond and one unrestricted agent. There are 3 kinds of perpetuites with different duaration plus a short-term bond. The estrange thing is that the model doesn't work. I get the message: There are 36 eigenvalue(s) larger than 1 in modulus
for 39 forward-looking variable(s)

The rank conditions ISN'T verified!"

However, when I delete the variables ksi_r1(+1), ksi_r2(+1) and ksi_r3(+1) from the equations of the lines 193,194 e 195, the model just work perfectly.

Can anybody help me to understand that?

The file is attached.

Re: Unusual Problem

PostPosted: Sat Dec 15, 2012 3:48 pm
by zenghaiwei
the equation of ksi_r1,ksi_r2 and ksi_r3, you have two sets of this three functions, why?

Re: Unusual Problem

PostPosted: Mon Dec 17, 2012 7:48 pm
by jpv1988
zenghaiwei wrote:the equation of ksi_r1,ksi_r2 and ksi_r3, you have two sets of this three functions, why?


It's a segmented market (4 bonds types and 4 agents) where one agent is unrestricted and the others can only buy 1 kind of bond.

Re: Unusual Problem

PostPosted: Sat Dec 29, 2012 10:30 am
by jpfeifer
Does the model then still have full rank if it is linearized (no covariances to pin down the optimal allocation)?

Re: Unusual Problem

PostPosted: Wed Jan 09, 2013 1:38 pm
by jpv1988
jpfeifer wrote:Does the model then still have full rank if it is linearized (no covariances to pin down the optimal allocation)?


When I eliminate the ksi`s it does have full rank. But without that, no.