The study helps to resolve a mysterious pattern within the performances of investment newsletters.

It's the excitement, the enthusiasm, the fun you get with investment newsletters.

An investment newsletter, too, shows the positive results of the repurchase effect.

Some veteran posters have gone on to found investment newsletters and hedge funds of their own.

No one tracks all of the roughly 1,000 investment newsletters.

Don't despair: Several investment newsletters are good at the pattern recognition needed to apply the theory.

And similar results were reached in my own study of security analysts who write investment newsletters.

The majority of investment newsletters are more bearish today than they've been in years.

The ratio of bulls to bears among about 130 investment newsletters has risen above two to one.

She was founder and publisher of "Cues on the News", an investment newsletter for women.