We like to buy products that come with larger packages, because, we think we’re saving money doing so:
Wal-Mart sold $284 billion worth of goods in 2005. Groceries accounted for about one-quarter of that amount, but that meant $64 billion, and rising. Many food companies do a third of their business with this one retailer. Wal-Mart does not have to demand slotting fees. If a food company wants its products to be in Wal-Mart, it has to offer rock-bottom prices. Low prices sound good for people without much money, but nutritionally, there’s a catch. Low prices encourage everyone to buy more food in bigger packages. If you buy more, you are quite likely to eat more. And if you eat more, you are more likely to gain weight and become less healthy.
When we buy larger portions, do we actually consume more?