Stephan's Tuesday Picks

• Roger Martin: Confident companies do less (Medium)
• The tiny, squishy toys driving parents to the brink (WSJ)
• Colombia's mustard lovers grow desperate amid saucy shortage of Dijon (NYT)
• What the price of Nescafe at Woolworths tells us about supermarket promotion tactics (The Guardian) 
• Why billionaires are circling debt-laden French grocer Casino (Bloomberg)