We model the relationship between asset float (tradeable shares) and speculative bubbles. Investors trade a stock with limited float because of insider lock-ups. They have heterogeneous beliefs due to overconfidence and face short-sales constraints. A bubble arises as price overweighs optimists'...

The death of an artist constitutes a negative shock to his future production; it permanently decreases the artist's float. We use this shock to test predictions of speculative trading models with short-selling constraints. Symmetrically to Hong et al. (2006), where an increase in float decreases...