Last year Average Joe released Jens Balle’s new book, Når hulemænd investerer (When cavemen invest). The book quickly became a hit amongst private investors.
For many years Jens Balle worked in the financial sector, given advices to investors. It was during the dot.com-crisis he got interested in financial behavior. He wanted to learn, why we tend to do the same wrong actions at the same stupid time. Soon after he was blogging on behavioral finance on a large Danish newspaper and appeared as an expert on the psychology of investors when markets where unstable.