John Timmer, writing for Ars Technica:
The behavior of their co-workers led them to formulate a hypothesis: If a sheet of paper is close to the normal size we use every day, then people will mentally categorize it as still useful and will be more likely to recycle it. If, in contrast, it’s a smaller size, then we’ll view it as damaged and less useful. As a result, we’ll tend to throw it in the trash.
Fascinating!