We study the impact of mandatory calorie posting on consumers' purchase decisions using detailed data from Starbucks. We find that average calories per transaction fall by 6 percent. The effect is almost entirely related to changes in consumers' food choices—there is almost no change in...

Multiproduct firms can set separate prices for all possible bundled combinations of its products "mixed bundling"). However, this is impractical for firms with more than a few products, because the number of prices increases exponentially with the number of products. We find that simple pricing...