How Starbucks caffeinates local economies

Starbucks offers endless opportunities for innovation. Parts of social media delight in hacking the chain’s menu to create highly instagrammable drinks. Fancy a “cake batter Frappuccino”? Simply order a “vanilla bean crème Frappuccino”, add a pump of hazelnut syrup and ask the barista to put a cake pop in the blender. How about some “liquid cocaine”? That involves four shots of espresso with four pumps of white-chocolate syrup, served over ice.

This article appeared in the Finance & economics section of the print edition under the headline “The frappuccino effect”