The creation of the WTO revived the use of "safeguard" measures to protect troubled industries against surges in import competition. Many of these measures have now been challenged in the WTO dispute resolution process, and in each case the process has found the challenged measure to be a violation of WTO law. This paper examines the WTO rules on safeguards from an economic perspective, and off...

Instruction-giving systems for virtual interactive 3D worlds have a wide range of applications in education, games and others. This paper discusses the computational task of referring expression generation for systems of this kind, focusing on the use of spatial relations to describe domain objects. Resumo. Sistemas de geração de instruções em mundos virtuais interativos 3D possuem uma ampla ga...