The social impacts of trade -- The evolving character of the international legal system -- Unilateral trade regulation and the United Nations Charter principles -- Unilateral trade regulation, the law of state responsibility and the law of treaties -- WTO obligations affected by Members' use of social trade regulations -- Legal remedies for violations of WTO law -- Social trade regulations in the WTO dispute settlement system : looking at the evidence -- How can a WTO Member pursue a social goal with trade regulations? -- Is there a modality to decide when trade measures can be used to pursue social goals?