“…In this article we continue to address this gap (MartinOrtega, Outhwaite, & Rook, 2015;Methven O'Brien & Martin-Ortega, 2017;Methven O'Brien, Mehra, & Vander Meulen, 2016;Outhwaite & Martin-Ortega, 2016; see also Barnard, 2013;De Schutter, 2014;Northern Ireland Human Rights Commission, 2013;Stumberg et al, 2014) with a focus on public procurement's place in the international trade regime and its potential role as a complement to social clauses in trade agreements. Section 2 considers legal definitions of public procurement and distinguishes primary and secondary aims of procurement under key international and regional procurement regimes, namely the WTO Plurilateral Agreement on Government Procurement (GPA), the Model Law on Public Procurement of the United Nations Commission on International Trade Law (UNCITRAL) and the European Union's procurement Directives.…”