1. Concerning the role of efficiency in negotiating reductions to 'behind-the-border' measures, see;; G Rw Staiger;The "new" economics of trade agreements: from trade liberalization to regulatory convergence?' (2021),2022
2. There is no clear narrative over the redistributive effects of trade liberalisation within individual States: see, for instance, D Rodrik;Journal of Economic Perspectives,2018