S&P Global's Cullinan Says Oil Still Driving Ratings

S&P Global Ratings Sovereign Credit Analyst Trevor Cullinan discusses geopolitics and its impact on ratings. He speaks on "Bloomberg Markets: Middle East." (Source: Bloomberg)

Full Show: Bloomberg Businessweek (09/22)
20:51 - Bloomberg Television takes you behind the scenes of our award-winning magazine "Bloomberg Businessweek." Hosts Carol Massar and Julia Chatterley talk with the writers who break news on a weekly basis and get a lighter touch from the editor who oversees the Etc. section. (Source: Bloomberg)
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