NY -- Standard&Poor's CreditWire 9/2/97 -- Standard&Poor's today affirmed its double-'B' rating on the United Mexican States' long-term foreign currency obligations, including Brady bonds, and its triple-'B'-plus/'A-2' ratings on Mexico's long and short-term peso-denominated obligations. The outlook was revised to positive from stable. Including sovereign-supported issuers, about $75.5 billion in debt is affected. Mexico's creditstanding is constrained by the vulnerability of economic policy to the political pressures that inevitably build over the course of an electoral cycle. The positive outlook reflects the prospect that the unprecedented political opening underway could alleviate these pressures. Standard&Poor's expects Mexico's new pluralism to improve governance long-term. Yet the process is sure to be bumpy. The pace of improvement
