The market selection hypothesis posits that over time more successful traders will stay in the market, whereas those with trading losses will exit. If success is at least somewhat determined by behavior, then as a result of market selection traders who survive in markets behave differently than...

Theories on under- and over-reaction in asset prices fall into three types: (1) they are respectively driven by different psychological factors; (2) they are driven by different types of investors; and (3) they reflect un-modeled risk. We design an asset market where information arrives...

Many argue that under- and over-reaction in asset prices are caused by inherently different factors. We design an asset market where information arrives sequentially over time to investigate the sources of these phenomena. We find that prices react insufficiently to news surprises and...

We investigate the formation of market prices in a new experimental setting involving multi-period asset markets with state-dependent fundamentals. We are particularly interested in two informational aspects: (1) the role of traders who are informed about the true state and (2) the provision of...

We experimentally examine the effectiveness of antitrust policies against bidding rings in theEnglish auction (EN) and the first-price sealed-bid auction (FP). We consider both traditionalantitrust policy (without a leniency program) and modern antitrust policy (with a leniencyprogram). In EN,...

We experimentally examine the collusive properties of two commonly used auctions: the English auction (EN) and the first-price sealed-bid auction (FPSB). In theory, both tacit and overt collusion are always incentive compatible in EN while both can be incentive compatible in FPSB if the auction...

This paper extends choice theory by allowing for the interaction between cognitive costs and social norms. The authors experimentally investigate the role of imitation and temporal decisional patterns when participants face a task which is costly in cognitive terms. They identify two main...

The paper formalizes Warner's (1965) randomized response technique (RRT) as a game and implements it experimentally, thus linking game theoretic approaches to randomness in communication with survey practice in the field and a novel implementation in the lab. As predicted by our model and in...

A human subject laboratory experiment compares the real-time market performance of the two most popular auction formats for online ad space, Vickrey-Clarke-Groves (VCG) and Generalized Second Price (GSP). Theoretical predictions made in papers by Varian (2007) and Edelman, et al. (2007) seem to...

This essay links some of my own work on expectations, learning and bounded rationality to the inspiring ideas of Jean-Michel Grandmont. In particular, my work on consistent expectations and behavioral learning equilibria may be seen as formalizations of JMG's ideas of self-fulfilling mistakes....