What to Watch in the Day Ahead - Wednesday, Oct 21

(The Day Ahead is an email and PDF publication that includes the day's major stories and events, analyses and other features. To receive The Day Ahead, Eikon users can register at . Thomson One users can register at RT/DAY/US. All times in ET/GMT) General Motors Co, the No.1 U.S. automaker, will try to convince a skeptical Wall Street that much of its problems are behind it, as it reports its third-quarter results. A slowdown in sales in China and South America is expected to weigh down a mo