Stephan's Tuesday Picks

• Wal-Mart launches new front in U.S. price war, targets Aldi in grocery aisle (Reuters)
• Dealmaker Michael Klein helped kill Kraft Heinz bid for Unilever (Financial Times)
• Concerns grow that loyalty programs may have fallen miles behind customer needs (Canadian Business)
• The new battleground for marketing led growth (MQ)
• CPG now spends more on digital than traditional ads, but shoppers doubt they work (AdAge)