two questions about the dynare results

[mayong1982]

dear everyone,

i have two questions when explaining the dynare results:

1/what is the automatic given level of confidence when dyanre produces the posterior estimation? more specificly, 5% or 10% along with the "conf. interval "?

2/why the posterior stardard deviation given by the dynare are always the same with the prior stardard deviation given by the author? i mean,why there is no difference between the prior and posterior stardard deviation?


here below present an example:

parameters
prior mean post. mean conf. interval prior pstdev

sigma 1.000 0.9063 0.5844 1.1061 gamma 0.2000
fai 1.000 0.6485 0.3900 0.7681 gamma 0.2000
xi 0.500 0.4884 0.3326 0.6489 beta 0.1000
rho_r 0.500 0.6831 0.5711 0.8463 beta 0.2000
phi_pi 1.000 2.5042 1.8623 2.8907 norm 0.5000
phi_y 0.500 0.1178 0.0365 0.2805 gamma 0.2000
rho_g 0.500 0.4310 0.2836 0.7404 beta 0.2000
psi_y 0.000 0.0008 -0.0519 0.0484 norm 0.0500
psi_b -0.030 0.0089 -0.0507 0.0515 norm 0.0200
rho_t 0.500 0.3358 0.1717 0.7553 beta 0.2000
tao_y 0.000 -0.1250 -0.2441 0.0316 norm 0.0500
tao_b 0.030 0.0447 0.0226 0.0596 norm 0.0100
tao_g 0.030 0.0424 0.0219 0.0551 norm 0.0100
rho_a 0.700 0.6929 0.3576 0.8567 beta 0.2000
kr 0.500 0.3843 0.1403 0.6963 beta 0.2000
kpi 1.500 1.0616 0.7342 2.0397 norm 0.5000
ky 0.500 0.5002 0.2098 0.6507 gamma 0.2000

standard deviation of shocks
prior mean post. mean conf. interval prior pstdev

epsilon_a 0.800 0.9512 0.8102 1.0429 invg Inf
epsilon_r 0.500 0.8717 0.4386 1.1289 invg Inf
epsilon_g 0.100 0.0657 0.0316 0.1030 invg Inf
epsilon_t 0.100 0.0851 0.0416 0.1061 invg Inf
epsilon_c 0.100 0.1250 0.0321 0.2582 invg Inf
Total computing time : 0h03m56s

thanks a lot.

[jpfeifer]

1. It is given by options_.mh_conf_sig which has default 0.9
2. Because the posterior standard deviation is not displayed, only the prior.

[mayong1982]

1. It is given by options_.mh_conf_sig which has default 0.9
2. Because the posterior standard deviation is not displayed, only the prior.

thanks, jpfeifer.
then how can we obtain the posterior deviation when using dynare?

[jpfeifer]

As the square root of the variances stored in oo.posterior_variance. They are just not displayed by default.

[mayong1982]

As the square root of the variances stored in oo.posterior_variance. They are just not displayed by default.

OK. thank you, jpfeifer. ^-^