In a meta-analysis of trade policy models, Hess and von Cramon-Taubadel (2008) use over 5800 simulated welfare effects from 110 studies of potential Doha Development Agenda outcomes to identify characteristics of models, data and policy experiments that influence simulation results. This...

and this is a problem when estimating log-linear gravity equations. This has caused many researchers to either ignore the zero trade flows or to replace the zero with a small positive number. Both of these actions bias the resulting parameter estimates of the gravity equation. In this study we...

Trade in genetically modified (GM) products remains a major issue in agricultural trade policy. In particular, the European Union has sought to deny market access to GM-products. In the wake of a WTO case brought by Canada and the US, among others, against an import ban imposed on genetically...