Fobaproa the FONAPRE ("Fondo de Apoyo Preventivo a las Institiciones de Banca Múltiple" or "Fund of preventive support to banking institutions") was founded to preserve the financial stability of banks, with the government having banks as trustees. By 1987, a parallel finance industry had been created with brokering firms, investment societies etc. To continue attracting investors, interest rates increased at the Bolsa Mexicana de Valores, and with the crash in the New York Stock Exchange, the national banking system was deeply affected and another devaluation came as a result. In 1990, in an attempt to prevent situations similar to those of
Dioscorea mexicana Dioscorea mexicana Dioscorea mexicana, Mexican yam or cabeza de negro is a species of yam in the genus "Dioscorea". "Dioscorea mexicana" is a caudiciform dioscorea having either a partly to completely above-ground dome-shaped caudex with a thick, woody outer layer up to 3 feet (90 cm) in diameter and 8–10 inches (20 to 25 cm) in height. The caudex of "D. mexicana" is divided into regular polygonal plates that become protuberant with age, and separated by deep fissures. The vigorous annual vines which may reach 30 feet (9 m) long before dying back in winter, that grow up from the