What to Watch in the Day Ahead - Tuesday, Sept. 23

(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) Carnival Cruises, the world's largest cruise operator, is due to report third-quarter earnings. The company warned in June that higher competition in its biggest market, the Caribbean, would hurt profits. But analysts say recent pricing trends sugges