The wiki at https://github.com/stan-dev/stan/wiki/Prior-Choice-Recommendations mentions
the exponential(10) as a possible weakly informative prior for the standard deviation in a non-hierarchical model. Does anyone have a reference to a paper discussing this option? It would be helpful when I’m writing up my analysis plan to better convince reviewers still wedded to the uninformative-prior paradigm.
I know of the PC prior paper by Simpson et al, but I’m not sure their reasoning applies in a non-hierarchical context.