1. The change point posterior density is degenerate for period 49; hence, the posterior odds ratio for no change is zero.
2. The posterior odds ratio for no change is zero: there is no mass at k = T.
3. In general, the chains showed good mixing, and posteriors were (relatively) smooth and unimodal. Convergence assessed using Geweke (1992) and Raftery and Lewis (1995) diagnostics.
4. If the researcher has a sufficiently sharp theory and the requisite data to hand, there is no theoretical bar to utilizing covariates. In the King et al. (1990) data itself, the record for France does not include the Fifth Republic.
5. All posteriors were (relatively) smooth and unimodal. Convergence of the change point parameter assessed using Geweke (1992) and Raftery and Lewis (1995) diagnostics. Convergence for the coefficient estimates was less easily obtained, but varying the priors somewhat resulted in very similar posterior findings.