«Greece and Ireland show best returns». Investment Adviser. 15 de marzo de 2007. Archivado desde el original el 5 de noviembre de 2012. Consultado el 29 de marzo de 2010. «In general, the weakest EU economies, called PIGS (Portugal, Italy, Greece, Spain), are best avoided in the near term. In recent times Ireland has also been associated with the PIGS countries and the acronym has been modified to become PIIGS. However considering Ireland's Public debt as a % of GDP this is an unfortunate comparison.»
Daniel Vernet (24 de abril de 1997). «L'Allemagne au coeur du débat français». Le Monde. «que l'argot communautaire a affublés d'un sobriquet peu élégant dans sa signification anglaise : « pigs », pour Portugal, Italy, Greece, Spain.»
«Greece and Ireland show best returns». Investment Adviser. 15 de marzo de 2007. Archivado desde el original el 5 de noviembre de 2012. Consultado el 29 de marzo de 2010. «In general, the weakest EU economies, called PIGS (Portugal, Italy, Greece, Spain), are best avoided in the near term. In recent times Ireland has also been associated with the PIGS countries and the acronym has been modified to become PIIGS. However considering Ireland's Public debt as a % of GDP this is an unfortunate comparison.»
