Bubbles are omnipresent in lab experiments with asset markets. Most of these experiments were conducted in environments … smaller bubbles if human traders expect algorithmic traders to be present. …

Bubbles are omnipresent in lab experiments with asset markets. But these experiments were (mostly) conducted in … clearly smaller bubbles if human traders expect algorithmic traders to be present. …

We develop a parsimonious model of bubbles based on the assumption of imprecisely known market depth. In a speculative … possibility of bubbles depending on the risk-free rate, uncertainty about market depth, and traders’ degree of leverage. This … allows us to discuss several policy measures. Bubbles always reduce aggregate welfare. Among others, certain monetary policy …