Thanks to all the people who participated in the probabilistic promotion for “The Upside.”

The average response to “would you buy this book without this promotion was 72% (on a 100% scale), and the average response to “would you wait longer was 62% (on a 100% scale). This means that this promotion worked mainly for people who were going to buy the book anyway at some point. But, there seems to be a substantial group that would have not purchased the book without this promotion.

There were people from all over the US, and some from outside the US — and the winner that was selected at random is from Washington DC.

I hope this was fun for everyone, and if you have any other suggestions for creative promotions, let me know — I am happy to try more things.

Irrationally yours

Dan Ariely