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a b s t r a c tRecent research on behavioral heterogeneity in social dilemma situations has increasingly focused on exploring the predictive value of individual difference variables. This paper contributes to this line of research by examining how cooperation preferences in a series of three public goods games conducted over the course of five months are related to personality traits and personal values. A variant of the four player one-shot public goods game was administered to classify participants' cooperation preferences, along with measures of the Big-Five personality dimensions and Rokeach's terminal values. Results revealed that, when considered independently, Agreeableness and prosocial values were indicative of individual preferences for cooperation. However, when considered simultaneously, only Agreeableness emerged as a significant predictor of cooperation preferences. The findings are interpreted in terms of how personality and personal values jointly impact economic behavior.

This article adopts a cognitive neuroscience perspective to develop theory about the consequences of foreign language use in organizational settings. In contrast to previous work that has focused on the interpersonal effects of foreign language use, we focus on intra-personal, cognitive processes that affect employee performance. Our model delineates how foreign language processing depletes cognitive resources, which can ultimately result in biased decisionmaking and reduced self-regulation. We discuss theoretical and practical implications of our model for international business research in the context of an increasing number of organizations that have adopted a common corporate language.

a b s t r a c tA core element of economic theory is the assumption of stable preferences. We test this assumption in public goods games by repeatedly eliciting cooperation preferences in a fixed subject pool over a period of five months. We find that cooperation preferences are very stable at the aggregate level, and, to a smaller degree, at the individual level, allowing us to predict future behavior fairly accurately. Furthermore, our results provide evidence on the psychological foundations of cooperation preferences. The personality dimension 'Agreeableness' is closely related to both the type and the stability of cooperation preferences.

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