Thank you for sharing this truly insightful article. I'm a big fan of psychology. Such a fascinating topic.

It's interesting that you mentioned scarcity when it comes to digital products.
Marlon Sanders does something I really like to create scarcity for his digital products.

He pulls his bonuses on a set time schedule. In fact, on his Promo Dashboard site right now, he has a countdown that says, "Order In The Next 00 Days 11 hours
21 minutes and 14 seconds And Get My Revealing Interview With Ryan Deiss On
How He Builds Large Businesses By Partnering With Experts!"

... And then of course it's counting down the seconds.

I found this technique very effective for creating scarcity for digital products. It really makes you kind of nervous when you see that countdown at the top of the page. Good Stuff!

- Kim