5 key lessons for investors after this week’s wild stock market ride CBS NewsMarket Turmoil Revives Age-Old Question: Should You Buy the Dip? The Wall Street JournalThe stock-market rout gave investors a scare — and a reminder that panic doesn’t pay MarketWatchWall St Week Ahead: Rollercoaster week in US stocks leaves investors braced for bumps ahead ReutersBusiness The Economist