You may be interested in the attached paper with Hashem Pesaran
and Gary Koop. It considers how prior and posterior differ for
unidentified parameters and suggests a fairly easy way to check
local identification by simulating the model on different sized
samples.
Prof Ron P Smith,
Economics,
Birkbeck College,
Malet Street,
London WC1E 7HX
Tel 44 (0)20 7631 6413
Fax 6416