Garratt, Anthony, Koop, Gary and Vahey, Shaun P. (2008) Forecasting substantial data revisions in the presence of model uncertainty. The Economic Journal, Volume 118 (Number 530). pp. 1128-1144. doi:10.1111/j.1468-0297.2008.02163.x ISSN 0013-0133.

Garratt, Anthony, Lee, Kevin, Mise, Emi and Shields, Kalvinder K. (2008) Real-time representations of the output gap. Review of Economics and Statistics, Volume 90 (Number 4). pp. 792-804. doi:10.1162/rest.90.4.792 ISSN 0034-6535.