A growing anticorruption campaign in India has a clever new tool: a zero-rupee note. The impressive note looks just like a 50-rupee note, but is clearly marked as being worthless and contains anticorruption messages. Indians are encouraged to give these notes to public officials who demand or expect bribes. Over 2.5 million of the notes have been distributed since 2007. A Twitter user tweeted economist Richard Thaler (of Nudge fame) to ask whether this counted as a nudge. What do you think his answer was, and why?