When do we cooperate and why? This question concerns one of the most persistent divides between \"theory and practice\", between predictions from game theory and results from experimental studies. For about 15 years, theoretical analyses predict completely-mixed \"behavior\" strategies, i.e....

Social interactions predominantly take place under the shadow of the future. Previous literature explains cooperation in indefinitely repeated prisoner's dilemma as predominantly driven by self-interested strategic considerations. This paper provides a causal test of the importance of social...

We analyze the law of one price (LoP) based on BigMac and Fortnite prices. We find a positive but less than perfect correlation between the over-/undervaluations of the two indices. While we cannot reject the LoP for the Fortnite data, we find that it does not hold for the BigMac data.

We analyze the law of one price (LoP) based on BigMac and Fortnite prices. We find a positive but less than a perfect correlation between the over-/undervaluations of the two indices. While LoP holds for the Fortnite data, it does not hold for the BigMac data.

An empirically well-established finding is that equity portfolios are concentratedin the domestic equity market of the investor. Previous theoreticaland empirical analyses have mainly focused on institutional explanations andlargely neglected individual behavior. In this study we report the...

The 2002 prices of suppliers in German call-by-call telephone market are rather dispersed, out-of-phase (uncorrelated), and show systematic down-up movements. In 2004, these prices are less dispersed, more in-phase and show more upwards runs than downs-ups. In both years, we clearly do not...

We study a market in which k identical and indivisible objects are allocated using a uniform-price auction where n k bidders each demand one object. Before the auction, each bidder receives an informative but imperfect signal about the state of the world. The good that is auctioned is a...

We investigate the scope for cooperation within a community engaged in repeated reciprocal interactions. Players seek the help of others and approach them sequentially according to some fixed order, that is, a ranking profile. We study the ranking profiles that are most effective in sustaining...

Due to their many applications, large Bayesian games have been a subject of growing interest in game theory and related fields. But to a large extent, models (1) have been restricted to one-shot interaction, (2) are based on an assumption that player types are independent and (3) assume that the...

Existing theories of a firm\'s optimal capital structure seem to fail in explaining why many healthy and profitable firms rely heavily on equity financing, even though benefits associated with debt (like tax shields) appear to be high and the bankruptcy risk low. This holds in particular for...