The McDonald's Arch Deluxe is one of the most infamous product failures in history. In his new book, The Voltage Effect, economist John List says it's an example of a good idea failing to scale up.

ncG1vNJzZmivp6x7r7zRZ6arn19nfXN%2BjmlpaGlgZH5xg5hya3BtZWp8uLTYZquhoaNifnqFj6xkppuUpLuiuMOsZJutopyys3nSoaawnZRivbO7zKKqnmWfm3qjscinnmaZXay2rbCMrKycm5WowG6u1K1kn6Sfpb0%3D