** This paper will be delivered in Spanish only ****
Although there were early credits to widows and single women in Mexico a the turn of the 20th Century, the banking system collapsed during the Mexican Revolution. As reconstruction begins, this paper traces how from the 1940s the then largest bank in terms of assets begun to issue credits to single women but only with the endorsement of a man or men (usually a family member, close relative or friend) as guarantor. By the 1970s women appear as a distinctive market segment, as exemplified by specific targeting of credit cards while by the 1990s they are able to access personal credits and mortgages. This case study of a gendered credit is thus a tale of self determination and individuality as much as story of economic development and growth of retail financial markets.