I have been replicating Adolfson et al. (2007). Now I have realized that there are two types of inverse gamma distributions in dynare (inv_gamma_pdf, inv_gamma2_pdf). If it is clear that the standard errors of shocks have inv_gamma_pdf prior, then I am unsure on the type priors for markup and susbstitution elasticity parameters, which also have inverse gamma distributions in the paper. What do you think?