The effect of information relevance and information availability on perceptual differences between Chinese and American nationals was investigated. Subjects participated in pairs as decision makers in a complex experimental environment. Participants' perceptions of success, failure, and competence levels for their own team (under conditions where judgments could be based on varying levels of relevant information) and for a supposed opposing team (under conditions where perceptions had to be inferred in the absence of information) were obtained. It was found that Americans and Chinese did not differ in ratings of their own team. Chinese, as opposed to Americans, perceived the opposing team as having more success, less failure, and more competence. The perceptual errors of the French and Viet Minh which led t o the defeat of the French at Dien Bien Phu were replicated in the laboratory for Americans and Chinese. Areas in which such potential cultural (oriental versus occidental) differences might be important are mentioned.