Is There a Replication Crisis?

There is a huge misconception that nudging is somehow secret. If nudges are secret, they don't really work. The principles of behaviora economics, the psychology on which we rest there has been essentially no replication crisis. Most of these things in can and do go into a class and replicate right in front of the students. You know, one of my favourite nudges are those lovely little signs on the sidewalk in central london,. reminding us foreigners to look right before we get hit by a double decker bus.