Paul A. M. van Lange

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This research evaluates the might vs. morality effect (Liebrand, Jansen, Rijken, & Suhre, 1986) by examining whether the manipulation of the perception of partner's honesty and intelligence interacts with the observer's own social value orientation to influence the latter's expectations regarding partner cooperation and own cooperation in a social dilemma.(More)
The author provides a conceptual framework for understanding differences among prosocial, individu-alistic, and competitive orientations. Whereas traditional models conceptualize prosocial orientation in terms of enhancing joint outcomes, the author proposes an integrative model of social value orientation in which prosocial orientation is understood in(More)
This research adopted an interdependence analysis of sacrifice, examining the link between commitment (i.e., the subjective experience of dependence and long-term orientation) and willingness to sacrifice in ongoing close relationships, and determining whether this link is moderated by preexisting individual differences in social value orientation (i.e.,(More)
The authors address locomotion in social dilemmas, examining the influence of social value orientation (prosocial, individualistic, and competitive orientations) and partner's strategy (100% cooperation, tit for tat, and 100% noncooperation) on cooperative behavior and locomotion to enhanced or reduced levels of interdependence (tendencies toward approach(More)
Broadly defined, social dilemmas involve a conflict between immediate self-interest and longer-term collective interests. These are challenging situations because acting in one's immediate self-interest is tempting to everyone involved, even though everybody benefits from acting in the longer-term collective interest. As such, greater knowledge of social(More)
The health and vitality of relationships, groups, and society at large is strongly challenged by social dilemmas or conflicts between short-term self-interest and long-term collective interest. Pollution, depletion of natural resources, and inter-group conflict can be characterized as examples of urgent social dilemmas. This article advances a conceptual(More)
The central purpose of the present research is to examine the ability of social value orientation (i.e., prosocial, individualistic, and competitive orientation), as measured with methods rooted in game theory (i.e., decomposed games), to predict real-life pro-social behavior. Consistent with hypotheses, results revealed that individual differences in(More)
The current research examines the role of social value orientation in determining the extent to which individuals are inclined to reciprocate cooperation exhibited by others perceived as either honest, intelligent, or unintelligent. Results revealed that individuals with prosocial orientation reciprocated high levels of cooperation regardless of other's(More)
The major purpose of the present study was to compare the causal attributions made by Cooperators and Defectors for a cooperative and a noncooperative target in an N-Person Prisoner's Dilemma. Factor analyses of attributions yielded two factors associated with the target's intrapersonal processes. One intraper-sonal factor was a combination of weakness and(More)
In the current field experiment we evaluate a structural solution to a real-life social dilemma by examining the effects of a carpool priority lane on judgments and preferences concerning the decision to commute by carpool (i.e., the presumed cooperative option) or driving alone (i.e., the presumed noncooperative option). Our general hypothesis was that(More)