Pactos, coaliciones y resultados electorales: los efectos de la alianza entre el PSOE y Nueva Izquierda en las elecciones municipales de 1999

Abstract

The goal of this article is to specify the effect of the electoral alliance that was established between the PSOE and Nueva Izquierda on the electoral results of the PSOE and IU in the 1999 local elections. The conclusions of the statistical analysis done is that the inclusion of members of Nueva Izquierda within the Socialist lists in some municipalities had the effect of improving the electoral results of the PSOE in these localities. Besides this, the alliance affected the electoral results of IU by making them worse. However, not all the vote losses experimented by IU benefited the Socialists. The effects on the electoral results of the PSOE were very unequal depending on the region. The analyses by region show that the benefits for the Socialists were limited to one region: Castilla-La Mancha. Only in Castilla-La Mancha the vote losses of IU produced a similar increase in the results of the PSOE.