...NEW YORK (S&P Global Ratings) Oct. 31, 2018--Recent developments surrounding the construction of a new airport for Mexico City have raised investor concerns about the potential direction of policies of the new Mexican administration, which has yet to assume office. Our sovereign analysis of Mexico will assess the long-term impact of such policy developments on the underlying factors that determine the rating. We continue to work under the assumption that pragmatic economic policies should sustain investor confidence and the sovereign's creditworthiness. We will assess policy developments and actions of the incoming administration from such a perspective. The long-term sovereign ratings remain at '###+' (foreign currency) and 'A-' (local currency) with a stable outlook. The ratings have historically reflected a track-record of cautious fiscal and monetary policies, which has contributed to limited government deficits and low inflation, as well as moderate external debt. The combination of...