This paper examines preferencing arrangements and tacit collusion in laboratory asset markets. In the experiments, dealers may internalize by matching the best quote or by passing orders to the dealer posting the best quote. Although some markets were highly competitive, several markets reached...

In 12 sessions conducted in a typical bubble-generating experimental environment, we design a pair of assets that can detect both irrationality and speculative behavior. The specific form of irrationality we investigate is the probability judgment error associated with low-probability,...