The self-confidence of media pundits like Jim Cramer can have a big influence on us (Image: Marion Curtis / Rex Features)

EVER wondered why the pundits who failed to predict the current economic crisis are still being paid for their opinions? It’s a consequence of the way human psychology works in a free market, according to a study of how people’s self-confidence affects the way others respond to their advice.

The research, by Don Moore of Carnegie Mellon University in Pittsburgh, Pennsylvania, shows that we prefer advice from a confident source, even to the point that we are willing …