UPDATE 1-What to Watch in the Week Ahead and on Monday, Aug. 17

(Removes entry on economist Bill Witherell's LIVECHAT as the event got cancelled.) WEEK AHEAD The stragglers for the earnings season - Home Depot, Wal-Mart and a few others - will report results to close out the quarter next week, with expectations that retailers would see decent sales after recent revisions show better-than-expected activity in the second quarter. The markets will also continue to watch the Chinese yuan after its unexpected devaluation this week, with anticipation