The paper studies when efficient allocations are implementable via coalition-proof mechanisms. When ambiguous mechanisms are allowed and agents are maxmin expected utility maximizers, we prove that all efficient allocations are implementable via interim coalition incentive compatible mechanisms...

This chapter reviews developments in the theory of decision making under risk and uncertainty, focusing on models that, over the last 40 years, dominated the theoretical discussions. It also surveys some implications of the departures from the “linearity in the probabilities” aspect of...

Epistemic game theory formalizes assumptions about rationality and mutual beliefs in a formal language, then studies their behavioral implications in games. Specifically, it asks: what do different notions of rationality and different assumptions about what players believe about…what others...

Starting with a simple economic model of the value of civil litigation from each side's perspective, this paper analyses a wide range of potential litigation cost strategies, settlement offers and negotiations, together with relevant applications and insights from game theory. Specific issues...

We report the results of an experiment on two-stage contests with budget-constrained agents competing to win an exogenously determined prize. We study a class of two-stage contests where in stage 1 agents first compete within their own groups by expending resources, and in stage 2 the winners of...

We extend the sealed-bid k-double-auction mechanism from a single- to two-round game where offers are made simultaneously during each round. If an agreement is reached on round 1, then the traders realize their profit and the game is over. If not, equipped with information about the round 1 bids...

The sealed-bid k-double auction mechanism for two-person bargaining under incomplete information can be extended by providing a bonus for both traders if, and only if, an agreement is reached. Brams and Kilgour (1996) proved that there is a unique level of bonus, namely, half the difference...

We consider mixed populations (N=21) of genuine (humans) and artificial (robots) agents, repeatedly interacting in small groups whose composition is changed randomly from round to round. Our purpose is to study the spread of cooperative or non-cooperative behavior in the population over time by...

Using experiments, we examine whether the decision to trust a stranger in a one-shot interaction is equivalent to taking a risky bet, or if a trust decision entails an additional risk premium to balance the costs of trust betrayal. We compare a binary-choice Trust game with a structurally...

Our lab experiment offers new insights on Bayesian probability updating and the effects of group discussion on risk decision making. We exploit a within-subject experimental setting based on Bougheas et al. (2015). We find that the majority of participants react to conflicting signals in a...