Guarantee Systems answer to different types of schemes and show particular designs although they have not been studied until now the effectiveness of them. Anyway, guarantee activity is beneficial for the entrepreneur and for financial institutions, finding common interests on them that, joined to the public sector, shape the guarantee activity as a policy that find the most effective coordination vectors between agents. The purpose of this paper is to explain if the characteristics of the guarantee systems are focused on credit institutions or the borrowers. Our results disclose that Latinoamerican systems use credit entities as allocators and the characteristics related with the satisfaction of banking needs are critical for a larger number of attended businesses.