We provide a new characterization of the Shapley value neither using the efficiency axiom nor the additivity axiom. In … this characterization, efficiency is replaced by the gain-loss axiom (Einy and Haimanko, 2011, Game Econ Behav 73: 615 …

of punishment, only communication significantly increases subjects’ earnings and thus efficiency. We study three forms of … communication and no punishment, we find that chat room communication increases cooperation and efficiency substantially, and when …, communication limited to sending numerical messages has no net effect on contributions or efficiency. …

of punishment, only communication significantly increases subjects’ earnings and thus efficiency. We study three forms of … communication and no punishment, we find that chat room communication increases cooperation and efficiency nearly as much as face …: communication, and punishment (allowing subjects to engage in costly reductions of one another’s earnings after learning of their …

-play communication: numerical (tabular) only, and verbal and numerical. We find that either kind of pre-play communication increases … trusting, trustworthiness, or both, in inter-subject comparisons, but that the inclusions of verbal communication generates …

We study communication in a two-player coordination game with Pareto-ranked equilibria. Prior research demonstrates … that efficient coordination is difficult without communication but obtains regularly with (mandatory) costless pre …-play messages. In a laboratory experiment, we modify communication by making the sending of messages optional and costly. Even small …

Organizations design their communication structures to improve decision-making while limiting wasteful influence … activities. An efficient communication protocol grants complete information payoffs to all organization members, thereby … strategies before being consulted. Under these assumptions, "public advocacy" is the unique efficient communication protocol …