Cross-cultural studies have found that East Asians are less likely than North Americans to attribute a target person’s deviant behavior to personal dispositions. Our interpretation is that cultures differ in implicit theories of individuals and groups. North Americans conceive of individual persons as free agents whereas East Asians conceptualize them as constrained members of agentic social collectives. Hence, we expected that East Asians would be more likely than North Americans to focus on collective agents and attribute outcomes to their dispositions. Study 1 analyzed newspaper articles about “rogue trader” scandels and found that US papers made more mention of the individual trader involved whereas Japanese papers referred more to the organizations. Study 2 replicated this pattern among US and Hong Kong participants responding to a vignette about a maladjusted member of a work team. Study 3 revealed the same pattern with respect to individual and group dispositionism using a different design than compared attributions for an act performed by an individual, in one condition, and by a group, in other condition.