Abstract
Class based electoral behaviour belongs to topics that have been subject of research for many decades; especially in developed Western countries. The class structure is a basis for class voting research. The EGP scheme is a most widespread model of social structure. This scheme is based on the employment structure; some authors prefer other models based for example. On the number of assets of each household or on the household income. This paper attempts to test different stratification models using the Colombia example to see whether class voting results will differ significantly or whether certain matches will be found.