A good number of socio-political and economic crisis that have plagued Mexico throughout its history, have caused massive migration movements to the north of this Nation. Such migration phenomenon is one of the underlying causes of the rise of borderline literature. Borderline literature writers have engaged in a constant struggled against the centralized government which is resilient to acknowledge, support and diffuse the state's education, culture and the arts in general. Literature, being an uttermost important aspect of the arts, was launched by some of the pioneer-migrants who took it upon their hands to call for other men of common intellectual interest. Years later, another two generations of younger writers are still making strenuous efforts to keep the border line literature movement not only alive but expanding as well, specifically the short story genre. The first of these two, "La Generación de la Ruptura" have enriched their writing experience with influences of social movements such as "The Beat Culture of the 1940s as well as the Hippie contra culture of the 1960s. Their fictions reflect the various forms of migration which noticeably have shaped the way of life of the border cities. The younger generation, "La Generación X," closely follows their ancestors' footsteps in the genre and themes as well as exploiting the American contra culture, but has incorporated aspects of the "Dirty Realism" which fixes their fictions as chaotic, apocalyptic and menacing to borderline society as a whole. Both groups manage three forms of migration to the U. S.: circular, which can be legal or illegal; psychological; and the one that stops on the Mexican side of the fence, an intent of migration to the U.S.